Tele-Data Guard Tap Detector & Privacy Module

This new Tele-Data Guard keeps calls private. The Tele-Data Guard alerts the user if someone has picked up an extension, when the Tele-Data Guard is installed on all extensions, the extension you pick up automatically disconnects the others. Powered by your telephone line, and requires no batteries or power source.

Specs:

Green LED alert light

Signals whether line is in use

Protects faxes and modems from interruption

No batteries required