FOREIGN GUARANTY Dated as of April 27, 2006 From

Exhibit 10.4

EXECUTION COPY

FOREIGN GUARANTY

Dated as of April 27, 2006

From

THE GUARANTORS NAMED HEREIN

And

THE ADDITIONAL GUARANTORS REFERRED TO HEREIN

as Guarantors

in favor of

THE SECURED PARTIES REFERRED TO IN

THE CREDIT AGREEMENT REFERRED TO HEREIN

Foreign Guaranty

T A B L E O F C O N T E N T S

Exhibit A - Guaranty Supplement

Foreign Guaranty

FOREIGN GUARANTY

FOREIGN GUARANTY dated as of April 27, 2006 made by the Persons listed on the signature pages hereof under the caption “Foreign Guarantors” and the Additional Guarantors (as defined in Section 8(b)) (such Persons so listed and the Additional Guarantors being, collectively, the “Guarantors” and, individually, each a “Guarantor”) in favor of the Secured Parties (as defined in the Credit Agreement referred to below).

PRELIMINARY STATEMENT.

SENSATA TECHNOLOGIES B.V., a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of the Netherlands (the “BV Borrower”), SENSATA TECHNOLOGIES FINANCE COMPANY, LLC, a Delaware limited liability company (the “US Borrower”; together with the BV Borrower, the “Borrowers”), SENSATA TECHNOLOGIES INTERMEDIATE HOLDING B.V., a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of the Netherlands, are party to a Credit Agreement dated as of April 27, 2006 (as amended, amended and restated, supplemented or otherwise modified from time to time, the “Credit Agreement”; the capitalized terms defined therein and not otherwise defined herein being used herein as therein defined) with certain Lenders party thereto, the Initial L/C Issuer, the Initial Swing Line Lender and MORGAN STANLEY SENIOR FUNDING, INC., as Collateral Agent and Administrative Agent. The Borrowers and the Guarantors have entered into or may from time to time enter into lines of credit (committed or uncommitted) and other similar arrangements (the “Bilateral Obligations”) with Lenders or their Affiliates and certain other financial institutions as initially set forth on Schedule XII of the Domestic Security Agreement and as such schedule may be amended from time to time upon written notice by the Borrowers to the applicable Lenders or Affiliates and certain other financial institutions (each, in such capacity, a “Bilateral Provider”).

Each Guarantor may receive, directly or indirectly, a portion of the proceeds of the Loans under the Credit Agreement and will derive substantial direct and indirect benefits from the transactions contemplated by the Credit Agreement and from each Bilateral Provider’s Bilateral Obligations. It is a condition precedent to the making of the Loans by the Lenders and the issuance of Letters of Credit by the Initial L/C Issuer under the Credit Agreement and the entry by the Hedge Banks into Secured Hedge Agreements from time to time that each Guarantor shall have executed and delivered this Guaranty.

NOW, THEREFORE, in consideration of the premises and in order to induce the Lenders to make Loans and to issue Letters of Credit under the Credit Agreement, the Bilateral Providers to provide Bilateral Obligations and the Hedge Banks to enter into Secured Hedge Agreements from time to time, each Guarantor, jointly and severally with each other Guarantor, hereby agrees as follows:

Section 1. Guaranty; Limitation of Liability. (a) Each Guarantor hereby absolutely, unconditionally and irrevocably guarantees the punctual payment when due, whether at scheduled maturity or on any date of a required prepayment or by acceleration, demand or otherwise, of all Obligations of the BV Borrower, each Loan Party guaranteeing the Obligations of the BV Borrower and each other Foreign Subsidiary that is an obligor with respect to the Cash Management Obligations now or hereafter existing (including, without limitation, any extensions, modifications, substitutions, amendments or renewals of any or all of the foregoing Obligations), whether direct or indirect, absolute or contingent, and whether for principal, interest, premiums, fees, indemnities, contract causes of action, costs, expenses or otherwise and the Bilateral Obligations of each Bilateral Provider (such Obligations being the “Guaranteed Obligations”), and agrees to pay any and all reasonable expenses (including, without limitation, reasonable fees and reasonable out-of-pocket expenses of counsel) incurred by the

Foreign Guaranty

Administrative Agent or any other Secured Party in enforcing any rights under this Guaranty or any other Loan Document in accordance with Section 10.04 of the Credit Agreement (including Attorney Costs of any law firm or other external counsel to the Administrative Agent); provided, however, that in no event shall the Guaranteed Obligations of any Guarantor include any of its obligations as a Borrower under the Credit Agreement. Without limiting the generality of the foregoing, each Guarantor’s liability shall extend to all amounts that constitute part of the Guaranteed Obligations and would be owed by any other Guarantor to any Secured Party under or in respect of the Loan Documents but for the fact that they are unenforceable or not allowable due to the existence of a bankruptcy, reorganization or similar proceeding involving such other Guarantor. Notwithstanding anything herein or in the Credit Agreement to the contrary, (i) the aggregate principal amount of all Bilateral Obligations guaranteed hereby shall not exceed $40,000,000 and (ii) to the extent that Bilateral Obligations are cash collateralized or otherwise guaranteed (other than pursuant hereunder), such Bilateral Obligations shall not be guaranteed hereby.

(b) Each Guarantor (other than the BV Borrower), and by its acceptance of this Guaranty, the Administrative Agent and each other Secured Party, hereby confirm that it is the intention of all such Persons that this Guaranty and the Obligations of each Guarantor hereunder not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law (as hereinafter defined), the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar foreign, federal or state Law to the extent applicable to this Guaranty and the Obligations of each Guarantor hereunder. To effectuate the foregoing intention, the Administrative Agent, the other Secured Parties and the Guarantors hereby irrevocably agree that the Obligations of each Guarantor (other than the BV Borrower in its capacity as a Borrower under the Credit Agreement) under this Guaranty at any time shall be limited to the maximum amount as will result in the Obligations of such Guarantor under this Guaranty not constituting a fraudulent transfer or conveyance. For purposes hereof, “Bankruptcy Law” means any proceeding of the type referred to in Section 8.01(f) of the Credit Agreement or Title 11, U.S. Code, or any similar foreign, federal or state Law for the relief of debtors.

(c) Each Guarantor hereby unconditionally and irrevocably agrees that in the event any payment shall be required to be made to any Secured Party under this Guaranty or any other guaranty, such Guarantor will contribute, to the maximum extent permitted by Law, such amounts to each other Guarantor and each other guarantor so as to maximize the aggregate amount paid to the Secured Parties under or in respect of the Loan Documents.

(d) To the extent that any Guarantor shall be required hereunder to pay a portion of the Guaranteed Obligations exceeding the greater of (a) the amount of the economic benefit actually received by such Guarantor from the Loans and (b) the amount such Guarantor would otherwise have paid if such Guarantor had paid the aggregate amount of the Guaranteed Obligations (excluding the amount thereof repaid by the Borrowers) in the same proportion as such Guarantor’s net worth at the date enforcement is sought hereunder bears to the aggregate net worth of all the Guarantors (taken together with the aggregate net worth of all other “Guarantors” (as such term is defined in the Credit Agreement) obligated with respect to the Guaranteed Obligations (the “Other Guarantors”)) at the date of enforcement is sought hereunder, then each Other Guarantor shall reimburse such other Guarantors for the amount of such excess, pro rata, based on the respective net worths of such Other Guarantors at the date enforcement hereunder is sought.

(e) Notwithstanding anything to the contrary in any Loan Document, no Guarantor shall have any liability or obligation under this Guaranty to the extent that such liability or obligation would constitute unlawful financial assistance under the applicable Laws of the jurisdiction of any Guarantor.

Section 2. Guaranty Absolute. Each Guarantor guarantees that the Guaranteed Obligations will be paid strictly in accordance with the terms of the Loan Documents, regardless of any

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Law, regulation or order now or hereafter in effect in any jurisdiction affecting any of such terms or the rights of any Secured Party with respect thereto. The Obligations of each Guarantor under or in respect of this Guaranty are independent of the Guaranteed Obligations or any other Obligations of any other Loan Party under or in respect of the Loan Documents, and a separate action or actions may be brought and prosecuted against each Guarantor to enforce this Guaranty, irrespective of whether any action is brought against the BV Borrower (in its capacity as Borrower under the Credit Agreement) or any other Loan Party or whether the BV Borrower or any other Loan Party is joined in any such action or actions. The liability of each Guarantor under this Guaranty shall be irrevocable, absolute and unconditional irrespective of, and each Guarantor hereby irrevocably waives any defenses it may now have or hereafter acquire in any way relating to, any or all of the following:

(a) any lack of validity or enforceability of any Loan Document or any agreement or instrument relating thereto;

(b) any change in the time, manner or place of payment of, or in any other term of, all or any of the Guaranteed Obligations or any other Obligations of any other Loan Party under or in respect of the Loan Documents, or any other amendment or waiver of or any consent to departure from any Loan Document, including, without limitation, any increase in the Guaranteed Obligations resulting from the extension of additional credit to any Loan Party or any of its Subsidiaries or otherwise; provided that where such a waiver is unenforceable or where such a change would discharge the Guarantor of its liability under this Guaranty if made without its consent, the Guarantor hereby gives its consent to such change;

(c) any taking, exchange, release or non-perfection of any Collateral or any other collateral, or any taking, release or amendment or waiver of, or consent to departure from, any other guaranty, for all or any of the Guaranteed Obligations;

(d) any manner of application of Collateral or any other collateral, or proceeds thereof, to all or any of the Guaranteed Obligations, or any manner of sale or other disposition of any Collateral or any other collateral for all or any of the Guaranteed Obligations or any other Obligations of any Loan Party under the Loan Documents or any other assets of any Loan Party or any of its Subsidiaries;

(e) any change, restructuring or termination of the corporate structure or existence of any Loan Party or any of its Subsidiaries;

(f) any failure of any Secured Party to disclose to any Loan Party any information relating to the business, condition (financial or otherwise), operations, performance, properties or prospects of any other Loan Party now or hereafter known to such Secured Party (each Guarantor waiving any duty on the part of the Secured Parties to disclose such information);

(g) the failure of any other Person to execute or deliver this Guaranty, any Guaranty Supplement (as hereinafter defined) or any other guaranty or agreement or the release or reduction of liability of any Guarantor or other guarantor or surety with respect to the Guaranteed Obligations; or

(h) any other circumstance (including, without limitation, any statute of limitations) or any existence of or reliance on any representation by any Secured Party that might otherwise constitute a defense available to, or a discharge of, any Loan Party or any other guarantor or surety to the extent permitted; provided that, where a Loan Party contracts with the Secured Parties to be discharged from the Guaranteed Obligations, the Guarantor hereby assents to such contract and remains bound under this Guaranty.

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This Guaranty shall continue to be effective or be reinstated, as the case may be, if at any time any payment of any of the Guaranteed Obligations is rescinded or must otherwise be returned by any Secured Party or any other Person upon the insolvency, bankruptcy or reorganization of the BV Borrower (in its capacity as a Borrower under the Credit Agreement) or any other Loan Party or otherwise, all as though such payment had not been made.

Section 3.Waivers and Acknowledgments. (a) Each Guarantor hereby unconditionally and irrevocably waives promptness, diligence, notice of acceptance, presentment, demand for performance, notice of nonperformance, default, acceleration, protest or dishonor and any other notice with respect to any of the Guaranteed Obligations and this Guaranty and any requirement that any Secured Party protect, secure, perfect or insure any Lien or any property subject thereto or exhaust any right or take any action against any Loan Party or any other Person or any Collateral.

(b) Each Guarantor hereby unconditionally and irrevocably waives any right to revoke this Guaranty and, where it may not waive this right, the Guarantor agrees that this Guaranty will not be revoked, and acknowledges that this Guaranty is continuing in nature and applies to all Guaranteed Obligations, whether existing now or in the future.

(c) Each Guarantor hereby unconditionally and irrevocably waives (i) any defense arising by reason of any claim or defense based upon an election of remedies by any Secured Party that in any manner impairs, reduces, releases or otherwise adversely affects the subrogation, reimbursement, exoneration, contribution or indemnification rights of such Guarantor or other rights of such Guarantor to proceed against any of the other Loan Parties, any other guarantor or any other Person or any Collateral and (ii) any defense based on any right of set-off or counterclaim against or in respect of the Obligations of such Guarantor hereunder.

(d) Each Guarantor acknowledges that the Collateral Agent may, without notice to or demand upon such Guarantor and without affecting the liability of such Guarantor under this Guaranty, foreclose under any mortgage by nonjudicial sale, and each Guarantor hereby waives any defense to the recovery by the Collateral Agent and the other Secured Parties against such Guarantor of any deficiency after such nonjudicial sale and any defense or benefits that may be afforded by applicable Law.

(e) Each Guarantor hereby unconditionally and irrevocably waives any duty on the part of any Secured Party to disclose to such Guarantor any matter, fact or thing relating to the business, condition (financial or otherwise), operations, performance, properties or prospects of any other Loan Party or any of its Subsidiaries now or hereafter known by such Secured Party.

(f) Each Guarantor acknowledges that it will receive substantial direct and indirect benefits from the financing arrangements contemplated by the Loan Documents and that the waivers set forth in Section 2 and this Section 3 are knowingly made in contemplation of such benefits.

(g) To the fullest extent permitted by law, each Guarantor organized under the laws of Mexico unconditionally and irrevocably waives, any right to which it may be entitled, to the extent applicable, under Articles 2813, 2814,2815,2816, 2817, 2818, 2819, 2820, 2821, 2822, 2823, 2824, 2826, 2827, 2830, 2835, 2836, 2837, 2838, 2839, 2840, 2842, 2844, 2846, 2847, 2848 and 2849 of the Federal Civil Code (Código Civil Federal) and the corresponding provisions of the Civil Codes of the States of Mexico and the Federal District.

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(h) Each Guarantor organized under the laws of Brazil hereby unconditionally and irrevocably waives the rights and benefits under Articles 364, 365, 827, 829, 834, 835, 837, 838 and 839 of the Brazilian Civil Code.

Section 4. Subrogation. Each Guarantor hereby unconditionally and irrevocably agrees not to exercise any rights that it may now have or hereafter acquire against the BV Borrower, any other Loan Party or any other insider guarantor that arise from the existence, payment, performance or enforcement of such Guarantor’s Obligations under or in respect of this Guaranty or any other Loan Document, including, without limitation, any right of subrogation, reimbursement, exoneration, contribution or indemnification and any right to participate in any claim or remedy of any Secured Party against the BV Borrower, any other Loan Party or any other insider guarantor or any Collateral, whether or not such claim, remedy or right arises in equity or under contract, statute or common Law, including, without limitation, the right to take or receive from the BV Borrower, any other Loan Party or any other insider guarantor, directly or indirectly, in cash or other property or by set-off or in any other manner, payment or security on account of such claim, remedy or right, unless and until all of the Guaranteed Obligations (other than (x) obligations with respect to Secured Hedge Agreements, (y) Cash Management Obligations not yet due and payable and (z) contingent indemnification obligations not yet accrued and payable under the Loan Documents) and all other amounts payable under this Guaranty shall have been paid in full in cash, all Letters of Credit shall have been cash collateralized or otherwise back-stopped, in each case, on terms required by the Credit Agreement or shall have expired or been terminated and the Commitments shall have expired or been terminated. If any amount shall be paid to any Guarantor in violation of the immediately preceding sentence at any time prior to the latest of (a) the payment in full in cash of the Guaranteed Obligations and all other amounts payable under this Guaranty, (b) the Maturity Date of the Term Loan Facility and (c) the latest date of cash collateralization or other back-stop, in each case, on the terms required by the Credit Agreement or the expiration or termination of all Letters of Credit, such amounts shall be received and held in trust for the benefit of the Secured Parties, shall be segregated from other property and funds of such Guarantor and shall forthwith be paid or delivered to the Administrative Agent in the same form as so received (with any necessary endorsement or assignment) to be credited and applied to the Guaranteed Obligations and all other amounts payable under this Guaranty, whether matured or unmatured, in accordance with the terms of the Loan Documents, or to be held as Collateral for any Guaranteed Obligations or other amounts payable under this Guaranty thereafter arising. If (i) any Guarantor shall make payment to any Secured Party of all or any part of the Guaranteed Obligations, (ii) all of the Guaranteed Obligations and all other amounts, if any, payable under this Guaranty shall have been paid in full in cash, (iii) the Maturity Date of the Term Loan Facility shall have occurred and (iv) all Letters of Credit shall have been cash collateralized or otherwise back-stopped, in each case, on the terms required under the Credit Agreement, or shall have expired or been terminated, the Secured Parties will, at such Guarantor’s request and expense, execute and deliver to such Guarantor appropriate documents, without recourse and without representation or warranty, necessary to evidence the transfer by subrogation to such Guarantor of an interest in the Guaranteed Obligations resulting from such payment made by such Guarantor pursuant to this Guaranty.

Section 5. Payments Free and Clear of Taxes, Etc. Any payment made by a Guarantor pursuant to this Guaranty which results in the imposition of Taxes which would not have been imposed had the payment been made by the BV Borrower shall be made free and clear of and without deduction for any such Taxes; provided that if a Guarantor shall be required to deduct any such Taxes from such payments, then (i) the sum payable shall be increased as necessary so that after making all required deductions (including deductions applicable to additional sums paid under this section) the Administrative Agent, Lender or L/C Issuer (as the case may be) receives an amount equal to the sum it would have received had no such deductions been made, (ii) such Guarantor shall make such deductions and (iii) such Guarantor shall pay the full amount deducted to the relevant taxation authority or other authority in accordance with applicable Law. For the avoidance of doubt, this Section 5 shall be read as

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an obligation of the Guarantors that is in addition to their Guarantee of the BV Borrower’s obligations to indemnify for Taxes and Other Taxes pursuant to Section 3.01 of the Credit Agreement and shall not relieve a Guarantor of its obligations to make payments pursuant to Section 3.01 of the Credit Agreement on the relevant Borrower’s behalf.

Section 6. Representations and Warranties. Each Guarantor hereby makes each representation and warranty made in the Loan Documents by the Borrowers with respect to such Guarantor and each Guarantor hereby further represents and warrants as follows:

(a) There are no conditions precedent to the effectiveness of this Guaranty that have not been satisfied or waived.

(b) Such Guarantor has, independently and without reliance upon any Secured Party and based on such documents and information as it has deemed appropriate, made its own credit analysis and decision to enter into this Guaranty and each other Loan Document to which it is or is to be a party, and such Guarantor has established adequate means of obtaining from each other Loan Party on a continuing basis information pertaining to, and is now and on a continuing basis will be familiar with, the business, condition (financial or otherwise), operations, performance, properties and prospects of such other Loan Party.

Section 7. Covenants. Each Guarantor (other than the Foreign Guarantor in its capacity as a Borrower under the Credit Agreement) covenants and agrees that, so long as any part of the Guaranteed Obligations shall remain unpaid, any Letter of Credit shall be outstanding and not cash collateralized or otherwise back-stopped in accordance with the Cash Collateralization or back-to-back letter of credit provisions set forth in Section 2.03(g) of the Credit Agreement or any Lender shall have any Commitment, such Guarantor will perform and observe, and cause each of its Subsidiaries to perform and observe, all of the terms, covenants and agreements set forth in the Loan Documents on its or their part to be performed or observed or that the BV Borrower has agreed to cause such Guarantor or such Subsidiaries to perform or observe.

Section 8. Amendments, Guaranty Supplements, Etc. (a) No amendment or waiver of any provision of this Guaranty and no consent to any departure by any Guarantor therefrom shall in any event be effective unless the same shall be in writing and signed by the Administrative Agent and the Required Lenders, and then such waiver or consent shall be effective only in the specific instance and for the specific purpose for which given; provided, however, that no amendment, waiver or consent shall, unless in writing and signed by all of the Secured Parties (other than any Lender that is, at such time, a Defaulting Lender), (a) reduce or limit the obligations of any Guarantor hereunder, release any Guarantor hereunder or otherwise limit any Guarantor’s liability with respect to the Obligations owing to the Secured Parties under or in respect of the Loan Documents except as provided in the next succeeding sentence, (b) postpone any date fixed for payment hereunder or (c) change the number of Secured Parties or the percentage of (x) the Commitments, (y) the aggregate unpaid principal amount of the Loans or (z) the aggregate Available Amount of outstanding Letters of Credit that, in each case, shall be required for the Secured Parties or any of them to take any action hereunder. Upon the sale of a Guarantor to the extent permitted in accordance with the terms of the Loan Documents, such Guarantor (other than the Foreign Guarantor in its capacity as a Borrower under the Credit Agreement) shall be automatically released from this Guaranty; provided that no such release shall occur if such Guarantor is a guarantor in respect of any Specified Junior Financing Obligations, unless such Guarantor is released from its obligations with respect to such Specified Junior Financing Obligations. The Administrative Agent will, at such Guarantor’s expense, execute and deliver to such Guarantor such documents as such Guarantor shall reasonably request to evidence the release of such Guarantor from its Guarantee hereunder pursuant to this Section 8; provided that such Guarantor shall have delivered to the Administrative Agent a written

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request therefor and a certificate of such Guarantor to the effect that the transaction is in compliance with the Loan Documents. The Administrative Agent shall be authorized to rely on any such certificate without independent investigation.

(b) Upon the execution and delivery by any Person of a guaranty supplement in substantially the form of Exhibit A hereto (each, a “Guaranty Supplement”), (i) such Person shall be referred to as an “Additional Guarantor” and shall become and be a Guarantor hereunder, and each reference in this Guaranty to a “Guarantor” shall also mean and be a reference to such Additional Guarantor, and each reference in any other Loan Document to a “Guarantor “or a “Foreign Guarantor” shall also mean and be a reference to such Additional Guarantor, and (ii) each reference herein to “this Guaranty”, “hereunder”, “hereof” or words of like import referring to this Guaranty, and each reference in any other Loan Document to the “Guaranty”, “Foreign Guaranty”, “thereunder”, “thereof” or words of like import referring to this Guaranty, shall mean and be a reference to this Guaranty as supplemented by such Guaranty Supplement.

Section 9. Notices, Etc. All notices and other communications provided for hereunder shall be in writing (including telegraphic, telecopy or telex communication) and mailed, telegraphed, telecopied, telexed or delivered to it, if to any Guarantor, addressed to it in care of the BV Borrower at the BV Borrower’s address specified in Schedule 10.02 of the Credit Agreement, if to any Agent, at its address specified in Schedule 10.02 of the Credit Agreement, if to or any Lender, at its address specified in its Administrative Questionnaire, if to any Hedge Bank, at its address specified in the Secured Hedge Agreement to which it is a party, or, as to any party, at such other address as shall be designated by such party in a written notice to each other party. All such notices and other communications shall be deemed to be given or made at such time as shall be set forth in Section 10.02 of the Credit Agreement. Delivery by telecopier of an executed counterpart of a signature page to any amendment or waiver of any provision of this Guaranty or of any Guaranty Supplement to be executed and delivered hereunder shall be effective as delivery of an original executed counterpart thereof.

Section 10. No Waiver; Remedies. No failure on the part of any Secured Party to exercise, and no delay in exercising, any right hereunder shall operate as a waiver thereof; nor shall any single or partial exercise of any right hereunder preclude any other or further exercise thereof or the exercise of any other right. The remedies herein provided are cumulative and not exclusive of any remedies provided by Law.

Section 11. Right of Set-off. Upon the occurrence and during the continuance of any Event of Default, the Administrative Agent and, after obtaining the prior written consent of the Administrative Agent, each other Agent and each Lender and each of their respective Affiliates is hereby authorized at any time and from time to time, to the fullest extent permitted by Law, to set off and apply any and all deposits (general or special, time or demand, provisional or final, but excluding payroll, tax and trust accounts) at any time held and other indebtedness at any time owing by such Agent, such Lender or such Affiliate to or for the credit or the account of any Guarantor against any and all of the Obligations of such Guarantor now or hereafter existing under the Loan Documents, irrespective of whether such Agent or such Lender shall have made any demand under this Guaranty or any other Loan Document and although such Obligations may be unmatured. Each Agent and each Lender agrees promptly to notify such Guarantor after any such set-off and application; provided, however, that the failure to give such notice shall not affect the validity of such set-off and application. The rights of each Agent and each Lender and their respective Affiliates under this Section are in addition to other rights and remedies (including, without limitation, other rights of set-off) that such Agent, such Lender and their respective Affiliates may have.

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Section 12. Indemnification. (a) Without limitation on any other Obligations of any Guarantor or remedies of the Secured Parties under this Guaranty, each Guarantor shall, to the fullest extent permitted by law, indemnify, defend and save and hold harmless each Secured Party and each of their Affiliates and their respective officers, directors, employees, agents and advisors (each, an “Indemnified Party”) from and against, any and all claims, damages, losses, liabilities and expenses (including, without limitation, Attorney Costs) (which shall be limited to one (1) counsel to the Administrative Agent and the Secured Parties (exclusive of one local counsel to the Administrative Agent and the Secured Parties in each appropriate jurisdiction), unless (x) the interests of the Administrative Agent and the Secured Parties are sufficiently divergent, in which case one (1) additional counsel may be appointed and (y) if the interests of any Secured Party or group of Secured Parties (other than all of the Secured Parties) are distinctly or disproportionately affected, one (1) additional counsel for such Secured Party or group of Secured Parties in connection with the execution, delivery, enforcement, performance or administration of any Loan Document or any other agreement, letter or instrument delivered in connection with the transactions contemplated thereby or the consummation of the transactions contemplated thereby) that may be actually incurred by or awarded against any Indemnified Party in connection with or as a result of any failure of any Guaranteed Obligations to be the legal, valid and binding obligations of any Loan Party enforceable against such Loan Party in accordance with their terms.

(b) Each Guarantor hereby also agrees that none of the Indemnified Parties shall have any liability (whether direct or indirect, in contract, tort or otherwise) to any of the Guarantors or any of their respective Affiliates or any of their respective officers, directors, employees, agents and advisors, and each Guarantor hereby agrees not to assert any claim against any Indemnified Party on any theory of liability, for special, indirect, consequential or punitive damages arising out of or otherwise relating to the Facilities, the actual or proposed use of the proceeds of the Loans or the Letters of Credit, the Loan Documents or any of the transactions contemplated by the Loan Documents.

(c) Each of the Indemnified Parties hereby also agrees that none of the Guarantors shall have any liability (whether direct or indirect, in contract, tort or otherwise) to any of the Indemnified Parties or any of their respective Affiliates or any of their respective officers, directors, employees, agents and advisors, and each of the Indemnified Parties hereby agrees not to assert any claim against any Guarantor on any theory of liability, for special, indirect, consequential or punitive damages arising out of or otherwise relating to the Facilities, the actual or proposed use of the proceeds of the Loans or the Letters of Credit, the Loan Documents or any of the transactions contemplated by the Loan Documents.

(d) Without prejudice to the survival of any of the other agreements of any Guarantor under this Guaranty or any of the other Loan Documents, the agreements and obligations of each Guarantor contained in Section 1(a) (with respect to enforcement expenses), the last sentence of Section 2, Section 5 and this Section 12 shall survive the payment in full of the Guaranteed Obligations and all of the other amounts payable under this Guaranty.

Section 13. Continuing Guaranty; Assignments under the Credit Agreement. This Guaranty is a continuing guaranty and shall (a) remain in full force and effect until the latest of (i) the payment in full in cash of the Guaranteed Obligations (other than with respect to the Secured Hedge Agreement and the Cash Management Obligations that are not yet due and payable and contingent indemnification obligations for which no claim has been asserted) and all other amounts payable under this Guaranty, (ii) the Maturity Date of the Term Loan Facility and (iii) the latest date of cash collateralization or other back-stop, in each case, on the terms required by the Credit Agreement, or expiration or termination of all Letters of Credit, (b) be binding upon each Guarantor, its successors and assigns and (c) inure to the benefit of and be enforceable by the Secured Parties and their successors, transferees and assigns. Without limiting the generality of clause (c) of the immediately preceding sentence, any Secured Party may assign or otherwise transfer all or any portion of its rights and

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obligations under the Credit Agreement (including, without limitation, all or any portion of its Commitments, the Loans owing to it and the Note or Notes held by it) to any other Person, and such other Person shall thereupon become vested with all the benefits in respect thereof granted to such Secured Party herein or otherwise, in each case as and to the extent provided in Section 10.07 of the Credit Agreement. Except as expressly provided in the Credit Agreement, no Guarantor shall have the right to assign its rights hereunder or any interest herein without the prior written consent of the Secured Parties.

Section 14. Judgments. If for the purposes of obtaining judgment in any court, it is necessary to convert a sum due hereunder in Dollars or any other applicable currency (the “Judgment Currency”) into a different currency (the “Other Currency”), the parties hereto agree, to the fullest extent they may effectively do so, that the rate of exchange used shall be that at which in accordance with normal banking procedures the Administrative Agent could purchase the Judgment Currency with such Other Currency at the spot rate of exchange quoted by the Administrative Agent at 11:00 a.m. on the Business Day preceding that on which final judgment is given (or such other rate as may be required by any applicable Law), for the purchase of the Judgment Currency, for delivery two Business Days thereafter.

Section 15. Execution in Counterparts. This Guaranty and each amendment, waiver and consent with respect hereto may be executed in any number of counterparts and by different parties thereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. Delivery of an executed counterpart of a signature page to this Guaranty by telecopier shall be effective as delivery of an original executed counterpart of this Guaranty.

Section 16. Governing Law; Jurisdiction; Waiver of Jury Trial, Etc. (a) This Guaranty shall be governed by, and construed in accordance with, the laws of the State of New York.

(b) Each Guarantor hereby irrevocably and unconditionally submits, for itself and its property, to the jurisdiction of any New York State court or federal court of the United States of America sitting in New York City, and any appellate court from any thereof, in any action or proceeding arising out of or relating to this Guaranty or any of the other Loan Documents to which it is or is to be a party, or for recognition or enforcement of any judgment, and each Guarantor hereby irrevocably and unconditionally agrees that all claims in respect of any such action or proceeding may be heard and determined in any such New York State court or, to the extent permitted by law, in such federal court. Each Guarantor agrees that a final judgment in any such action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law. Each Guarantor hereby irrevocably appoints CT Corporation System with an office on the date hereof at 111 Eighth Avenue, 13th Floor, New York, New York 1001 (the “Process Agent”) as its agent to receive and forward on behalf of itself the summons and complain and any other process which may be served in any such action or proceeding. Such service may be made by mailing or delivering a copy of such process to any Guarantor in the care of the Process Agent at the Process Agent’s address, and each Guarantor hereby irrevocably authorizes and directs the Process Agent to receive such service on its behalf and forward such service to the Guarantors. Nothing in this Guaranty or any other Loan Document shall affect any right that any party may otherwise have to bring any action or proceeding relating to this Guaranty or any other Loan Document in the courts of any jurisdiction.

(c) Each of the parties hereto irrevocably and unconditionally waives, to the fullest extent it may legally and effectively do so, any objection that it may now or hereafter have to the laying of venue of any suit, action or proceeding arising out of or relating to this Guaranty or any of the other Loan Documents to which it is or is to be a party in any New York State or federal court. Each of the parties hereto hereby irrevocably waives, to the fullest extent permitted by law, the defense of an inconvenient forum to the maintenance of such suit, action or proceeding in any such court.

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(d) EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO ANY OF THE LOAN DOCUMENTS, THE LOANS OR THE ACTIONS OF ANY SECURED PARTY IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT THEREOF.

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IN WITNESS WHEREOF, each Guarantor has caused this Guaranty to be duly executed and delivered by its officer thereunto duly authorized as of the date first above written.

Foreign Guaranty

Foreign Guaranty

Exhibit A

To The

Foreign Guaranty

FORM OF FOREIGN GUARANTY SUPPLEMENT

                         ,         

Morgan Stanley Funding, Inc., as Administrative Agent

One Pierrepont Plaza, 7th Floor

300 Cadman Plaza West

Brooklyn, NY 11201

Attn: Larry Benison / Gerard Jordan

Phone: (718)  ###-###-#### / 7422

Fax: (718)  ###-###-#### / 7250

Credit Agreement dated as of April 27, 2006 among SENSATA TECHNOLOGIES B.V., a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of the Netherlands (the “BV Borrower”), SENSATA TECHNOLOGIES FINANCE COMPANY, LLC, a Delaware limited liability company (the “US Borrower”), SENSATA TECHNOLOGIES INTERMEDIATE HOLDING B.V., a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) incorporated under the laws of the Netherlands, certain Lender party thereto, the Initial L/C Issuer, the Initial Swing Line Lender and MORGAN STANLEY SENIOR FUNDING, INC., as Collateral Agent and Administrative Agent.

Ladies and Gentlemen:

Reference is made to the above-captioned Credit Agreement and to the Foreign Guaranty referred to therein (such Foreign Guaranty, as in effect on the date hereof and as it may hereafter be amended, supplemented or otherwise modified from time to time, together with this Foreign Guaranty Supplement, being the “Foreign Guaranty”). The capitalized terms defined in the Foreign Guaranty or in the Credit Agreement and not otherwise defined herein are used herein as therein defined.

Section 1. Guaranty; Limitation of Liability. (a) The undersigned hereby absolutely, unconditionally and irrevocably guarantees the punctual payment when due, whether at scheduled maturity or on any date of a required prepayment or by acceleration, demand or otherwise, of all Obligations of the BV Borrower, each Loan Party guaranteeing the Obligations of the BV Borrower in its capacity as Borrower (and not as Guarantor) and each other Foreign Subsidiary which is an obligor with respect to the Cash Management Obligations now or hereafter existing under or in respect of the Loan Documents (including, without limitation, any extensions, modifications, substitutions, amendments or renewals of any or all of the foregoing Obligations), whether direct or indirect, absolute or contingent, and whether for principal, interest, premiums, fees, indemnities, contract causes of action, costs, expenses or otherwise, and the Bilateral Obligations of each Bilateral Provider (such Obligations being the “Guaranteed Obligations”), and agrees to pay any and all reasonable expenses (including, without limitation, reasonable fees and reasonable out-of-pocket expenses of counsel) by the Administrative Agent or any other Secured Party in enforcing any rights under this Guaranty Supplement, the Foreign Guaranty or any other Loan Document in accordance with Section 10.04 of the Credit Agreement (including Attorney Costs of any law firm or other external counsel to the Administrative Agent); provided, however, that in no event shall the Guaranteed Obligations of any Guarantor include any of its

Foreign Guaranty

obligations as a Borrower under the Credit Agreement. Without limiting the generality of the foregoing, the undersigned’s liability shall extend to all amounts that constitute part of the Guaranteed Obligations and would be owed by any other Loan Party to any Secured Party under or in respect of the Loan Documents but for the fact that they are unenforceable or not allowable due to the existence of a bankruptcy, reorganization or similar proceeding involving such other Loan Party. Notwithstanding anything herein or in the Credit Agreement to the contrary, (i) the aggregate principal amount of all Bilateral Obligations guaranteed hereby shall not exceed $40,000,000 and (ii) to the extent that Bilateral Obligations are cash collateralized or otherwise guaranteed (other than pursuant hereunder), such Bilateral Obligations shall not be guaranteed hereby.

(b) The undersigned, and by its acceptance of this Guaranty Supplement, the Administrative Agent and each other Secured Party, hereby confirm that it is the intention of all such Persons that this Guaranty Supplement, the Foreign Guaranty and the Obligations of the undersigned hereunder and thereunder not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar foreign, federal or state law to the extent applicable to this Guaranty Supplement, the Foreign Guaranty and the Obligations of the undersigned hereunder and thereunder. To effectuate the foregoing intention, the Administrative Agent, the other Secured Parties and the undersigned hereby irrevocably agree that the Obligations of the undersigned under this Guaranty Supplement and the Foreign Guaranty at any time shall be limited to the maximum amount as will result in the Obligations of the undersigned under this Guaranty Supplement and the Foreign Guaranty not constituting a fraudulent transfer or conveyance.

(c) The undersigned hereby unconditionally and irrevocably agrees that in the event any payment shall be required to be made to any Secured Party under this Guaranty Supplement, the Foreign Guaranty, the Foreign Guaranty; or any other guaranty, the undersigned will contribute, to the maximum extent permitted by applicable law, such amounts to each other Guarantor and each other guarantor so as to maximize the aggregate amount paid to the Secured Parties under or in respect of the Loan Documents.

(d) To the extent that any Guarantor shall be required hereunder to pay a portion of the Guaranteed Obligations exceeding the greater of (a) the amount of the economic benefit actually received by such Guarantor from the Loans and (b) the amount such Guarantor would otherwise have paid if such Guarantor had paid the aggregate amount of the Guaranteed Obligations (excluding the amount thereof repaid by the Borrowers) in the same proportion as such Guarantor’s net worth at the date enforcement is sought hereunder bears to the aggregate net worth of all the Guarantors (taken together with the aggregate net worth of all other “Guarantors” (as such term is defined in the Credit Agreement) obligated with respect to the Guaranteed Obligations (the “Other Guarantors”)) at the date of enforcement is sought hereunder, then each Other Guarantor shall reimburse such other Guarantors for the amount of such excess, pro rata, based on the respective net worths of such Other Guarantors at the date enforcement hereunder is sought.

Section 2. Obligations Under the Guaranty. The undersigned hereby agrees, as of the date first above written, to be bound as a Guarantor by all of the terms and conditions of the Foreign Guaranty to the same extent as each of the other Guarantors thereunder. The undersigned further agrees, as of the date first above written, that each reference in the Foreign Guaranty to an “Additional Guarantor” or a “Guarantor” shall also mean and be a reference to the undersigned, and each reference in any other Loan Document to a “Foreign Guarantor” or a “Loan Party” shall also mean and be a reference to the undersigned.

Section 3. Representations and Warranties. The undersigned hereby makes each representation and warranty set forth in Section 6 of the Foreign Guaranty to the same extent as each other Guarantor.

Foreign Guaranty

Section 4. Delivery by Telecopier. Delivery of an executed counterpart of a signature page to this Guaranty Supplement by telecopier shall be effective as delivery of an original executed counterpart of this Guaranty Supplement.

Section 5. Governing Law; Jurisdiction; Waiver of Jury Trial, Etc. (a) This Guaranty Supplement shall be governed by, and construed in accordance with, the laws of the State of New York.

(b) The undersigned hereby irrevocably and unconditionally submits, for itself and its property, to the jurisdiction of any New York State court or any federal court of the United States of America sitting in New York City, and any appellate court from any thereof, in any action or proceeding arising out of or relating to this Guaranty Supplement, the Foreign Guaranty or any of the other Loan Documents to which it is or is to be a party, or for recognition or enforcement of any judgment, and the undersigned hereby irrevocably and unconditionally agrees that all claims in respect of any such action or proceeding may be heard and determined in any such New York State court or, to the extent permitted by law, in such federal court. The undersigned agrees that a final judgment in any such action or proceeding shall be conclusive and may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by law. The undersigned hereby irrevocably appoints CT Corporation System with an office on the date hereof at 111 Eighth Avenue, 13th Floor, New York, New York 1001 (the “Process Agent”) as its agent to receive and forward on behalf of itself the summons and complain and any other process which may be served in any such action or proceeding. Such service may be made by mailing or delivering a copy of such process to the undersigned in the care of the Process Agent at the Process Agent’s address, and the undersigned hereby irrevocably authorizes and directs the Process Agent to receive such service on its behalf and forward such service to the undersigned. Nothing in this Guaranty Supplement or the Foreign Guaranty or any other Loan Document shall affect any right that any party may otherwise have to bring any action or proceeding relating to this Guaranty Supplement, the Foreign Guaranty or any of the other Loan Documents to which it is or is to be a party in the courts of any other jurisdiction.

(c) The undersigned irrevocably and unconditionally waives, to the fullest extent it may legally and effectively do so, any objection that it may now or hereafter have to the laying of venue of any suit, action or proceeding arising out of or relating to this Guaranty Supplement, the Foreign Guaranty or any of the other Loan Documents to which it is or is to be a party in any New York State or federal court. The undersigned hereby irrevocably waives, to the fullest extent permitted by law, the defense of an inconvenient forum to the maintenance of such suit, action or proceeding in any such court.

(d) THE UNDERSIGNED HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO ANY OF THE LOAN DOCUMENTS, THE LOANS OR THE ACTIONS OF ANY SECURED PARTY IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT THEREOF.

Foreign Guaranty