Room bugging surveillance devices phone bugging room bugging electronic spying equipment phone transmitters

Motion detector conceals transmitter - Item 147

Connected to the alarm system in a usual way (with three wires), this concealed transmitter is sensitive enough to pick up even whispers from any part of the room.

The transmitter is high - reliability fm modulated hybrid circuit. Frequency operation is 433 MHz crystal-controlled FM narrow band.

No antenna required. No battery required (Powered by dc current of the Alarm system).

Audio bandwidth: 20 Hz to 30 kHz.

Range up to 700 feet in open area.

The transmitter operates with no connection to the motion detector operation.

Easy to install with no fuss .

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