Tele-Guard Telephone Tap Detector [TG-1]

Tele-Guard Telephone Tap Detector [TG-1]
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The TELE-GUARD protects your telephone conversations by turning off the most common series and parallel line tap devices such as voltage activated tape recorders and series line transmitters (bugs).

Green LED and audio muting feature also instantly lets you know if anyone is listening on another extension or even a “lineman's test set” outside your house. Override switch lets you continue your conversation, if desired, after you have been alerted. Telephone line powered, never needs batteries or power adapter. Simple modular connection to phone.

For single line phones only.
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