Telephone spy transmitter with contact sensor and radio transmission
This telephone induction bug device is designed for telephone line surveillance without direct connection and remote sending of the collected information.
The UHF transmitter is equipped with 2x AA 1.5V batteries, external inductive sensor, ON/OFF switch and external flexible antenna. Both the transmitter and the sensor can be installed anywhere on the telephone line. To save energy and maximize the duration of operations, the induction telephone bug is equipped with an automatic activation circuit, which turns on the transmitter only when an audio signal is detected on the telephone line cord cable. The transmitter is automatically turned off, within a certain period of time, as soon as the telephone receiver is hung up and the audio signal disappears.
This special procedure using automatic activation optimizes the surveillance operations, preventing the device from activating automatically due to the noises that normally travel on the telephone line cables.
It is recommended to use the telephone bug transmitter interfaced with:
Power supply: Li-Ion rechargeable battery NOKIA BL-5C (3.7V)
Input voltage of external charger: 2.9–4.3V
Operation mode current consumption: 34mA
Standby current consuption: 1.65mA
Full working time: 60 hours
Standby operation time: 50 days
Size: 71 x 55 x 12 mm
Audio investigations by law enforcement units or private investigation agencies
Control of phone calls in homes, offices, shops, etc. for wiretapping on a landline phone circuit
In general in all those situations where it is necessary to retrieve information and/or carry out investigations through landline phone call interception without the need to physically connect to the line cables