... the eyes of all within sight of the camera facing the camera. Wireless Sweep: frequency detection range (1MHz-6.5GHz) ... call signals 6) Detect wireless network signal, cell phone base station signal s, wireless motioning system of the filed strength ... signals 10) Detect more covert videotaping 5.8GHz wireless camera, wireless eavesdropping devices, wireless monitor the signal 11) Check hotels, toilets, ...