... 1,Laser detecting distance:10cm-10m(cam see IR flash) 2,Detecting wave diatance:920m Infrared Detection Wireless ... 10) Detect more covert videotaping 5.8GHz wireless camera, wireless eavesdropping devices, wireless monitor the signal 11) Check hotels, ... toilets, entertainment venues, changing rooms, anti-wireless pinhole camera 12) Business negotiations, school examiner places, factories ...