Crosfen RF Detector Wireless Security Camera Detector - Bug Detector Signal for Hidden Camera Laser Lens GSM Listening Device Finder Radar Radio Scanner Signal - Alarm Camera Detector - Anti-Spy Hidd This Bug detector is a professional anti-spy equipment, it can detect most of the wireless cameras and audio bugs by RF frequency detection. Adjustable potentiometer sensitivity. (Greater/ smaller sensitivity can widen / narrow the detection scope ). Camera detector can quickly identify the source signal waves with the help of equipped strong signal indicator light. Detectable RF frequency from 1MHz to 6.5GHz for all FR frequency include GSM, WIFI BT, FM, VHF, UHF, 900 / 1200 / 2400 wireless audio and video transmission frequency Dual mode Hidden Camera Detector detectable, buzzer mode and vibrate mode can also used earphone to detect RF signal, without any sound from unit. Widely usage of RF detector :telephone eavesdropping, digital eavesdropping, tracking, vehicle eavesdropping, wireless pinhole cameras, wired cameras, electrical appliances and other sources