He’s using an everyday LED as a detector diode and an internal pull ... across the LED will start to discharge. If there is an RF signal present, the discharge voltage will be less than the ...

Let this surveillance detector keep you safe, sweeping for hidden cameras or other trackers in any place you stay.

It’s not so far-fetched though, while bugs and hidden cameras in for example an Airbnb may not have flashing LEDs, they still emit RF and can be detected with a signal strength meter.

Ukrainian drone detection specialist Kara Dag Technologies is developing a new variant of its Obriy artificial intelligence ...