FK321 Telephone Ringing Signal Light 500W 220V AC input / Output 220V ACFK324 Telephone Experiment Board
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FK323 Telephone line tap protection no power supply needed

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FK323 Telephone line tap protection no power supply needed
Price:
Sales price: $11.00
Type

Manufacturer: FutureKit
Description

To prevent eavesdropping on your calls this circuit generates an annoying tone on other handsets connected in parallel with your hand-piece. An on-board LED indicates if an unauthorized tap is being made.

Technical Information:
 - no need power supply
 - this circuit is connected parallel with the telephone line.
 - PCB dimensions : 1.90 x 2.33 inches.

NOTE: No Telephone cable, we sale only the board

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