UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 17, 2014

CONOLOG CORPORATION

(908) 722-8081

Registrant’s telephone number, including area code

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On December 17, 2014, Robert Benou resigned from Conolog Corporation’s Board of Directors, effective immediately. There were no disagreements between Robert Benou and Conolog Corporation or any officer or director of the Company which led to Mr. Benou’s resignation.

One On December 17, 2014, Marc R. Benou resigned from Conolog Corporation’s Board of Directors and from all officer positions including as president, that Mr. Benou held with the Conolog Corporation, effective immediately. There were no disagreements between Marc Benou and Conolog Corporation or any officer or director of the Company which led to Mr. Benou’s resignation.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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