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SKU: 4927

Availability: In stock

Quick Overview

This is the only product that can detect law enforcement telephone line taps! This unit requires no batteries, it gets its power directly from your telephone line. The Comsec C3I-II works on both digital or analog telephone lines.

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COMSEC C3I-II TELEPHONE TAP DETECTOR is available for purchase in increments of 1

The world's only downline tap detector is now available for purchase.

The COMSEC C3I-II TM is the only countermeasure debugging device that can detect legal and illegal wiretapping anywhere on the local telephone line including at the Telephone Company's Central Office. Once connected to the phone line, this unit continuously views, detects, reacts and displays an electrical signature pattern of the slightest electrical changes in telephone line impedance which are a result from signaling and switching equipment, telephone lines and wiretapping equipment connecting and disconnecting on your telephone line. Remote extension drawn loops are created very easily by anyone with the knowledge using Remote Observation Systems or REMOBs with slave units attached to your telephone line. The COMSEC C3I-II detects remote extension drawn loop wiretapping or electronic surveillance connecting and disconnecting from your telephone line.

This unit continuously protects your Telephone, Fax and Computer Data communications "to a degree never before possible." The COMSEC C3I-II TM is the first and only telephone line security device that can detect electronically isolated remote extension drawn loops; the most sophisticated, threatening and common type of electronic telephone line surveillance that other electronic countermeasure devices cannot. Detect eavesdropping by wiretapping that previously had been undetectable. Detect Hackers, Government Agencies, Telephone Company Employees, or anyone manipulating the Telephone Company's Central Exchange switching equipment to intercept your Telephones, Fax and Computer dial-up communications.

This unique device is most effective at detecting wiretaps eavesdropping at the beginning and ending of a telephone call. At the beginning of a telephone call, when someone is calling you can view the unit for a remote extension drawn loop wiretap to seize the line between the cadence ringing, usually between the first and third ring creating a connection reaction. At the conclusion of any telephone call by observing the C3I and counting the number of disconnection reactions on the telephone line the COMSEC C3I-II can detect legal and illegal wiretapping on your telephone line by establishing either a normal signature pattern or an abnormal signature pattern resulting from additional telephone lines or as we refer to them as wiretapping equipment disconnecting from your telephone line. It continuously detects legal and illegal remote extension drawn loop wiretaps connecting and disconnecting anywhere on your local telephone line, including at the Telephone Company’s Central Exchange. COMSEC-C3I TM US Patented telecommunications security products.

  • Includes a 30 minute consultation with the creator of this device
  • FCC Approved
  • Single or 2 line use
  • Continuous monitoring on phone line
  • Telephone line powered
  • Works on digital or analog lines
  • Size: 4 1/2 x 1 7/8 x 1
  • No batteries required

  • Wiretap detector with LED Phone line cord to attach detector to phone
  • Complete instructions
Demo Video
Q: Does this work on digital or analog landlines?
A: Both! You can use this device on digital or analog lines.

Q: Will this work for my cellphone?
A: No, the Comsec C3I-II is a landline tap detector.
Additional Information

Additional Information

pdf-link 4927manual.pdf
availability This unit has a one (1) week lead time

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