SH-055S - RF Signal Detector (Beeper size), High sensitivity

This device can detect the popular wireless CCTV camera, wireless phone, wireless tap and Cellphone from 50MHz~6.0GHz. It will beep to warn your from Slow to Rapid and there are 3 LEDs: Level 1 (Weak), Level 2 (Medium), Level 3 (Strong), indication the strength of detected signal.