Item 1.01 Entry into a Material Definitive Agreement.

On October 6, 2008, inTEST Corporation (the "Company") entered into and consummated an Agreement and Plan of Merger (the "Merger Agreement") with Sigma Systems Corp. ("Sigma"), its President, Sandy L. Hoover, and its stockholders pursuant to which all of the outstanding shares of Sigma were exchanged for $1.0 million in cash, 550,000 shares of the Company's common stock, par value $0.01 per share, and an agreement by the Company to issue non-negotiable promissory notes in an aggregate principal amount equal to $1.5 million, subject to adjustment based upon the amount of certain of Sigma's current assets and liabilities at closing as detailed in the Merger Agreement. The notes will bear interest at the prime rate plus 1.25%, will be secured by the assets of Sigma and will be payable in annual installments over five years. As a result of the merger, Sigma was merged with and into a wholly-owned subsidiary of the Company and will operate as SigmaSYS Corp. in the Company's Temperature Management product segment.

The foregoing description of the Merger Agreement is qualified in its entirety by reference to the Merger Agreement that is filed as Exhibit 2.1 hereto.

Item 2.01 Completion of Acquisition or Disposition of Assets.

The information contained in Item 1.01 of this Current Report on Form 8-K (the "Report") is incorporated herein by reference.

Item 8.01 Other Events

On October 7, 2008, the Company issued a press release announcing the acquisition of Sigma by the Company. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits

A list of the Exhibits which are required by Item 601 of Regulation S-K and filed with this Report is set forth in the Exhibit Index immediately following the signature page, which Exhibit Index is incorporated herein by reference.

---