Reverse camera detectorWork scope: 0 8 (m) Operating voltage: 5 (V) Dimensions: 6x3. 3x1. 1 (mm) Working hours : 8 10h Operation: 1: press the switch to start the machine and open the scanner. The scanner will emit red light. If there is a camera, a bright spot will appear in the background of red light. 2. You can also press the frequency intensity of light switch again. There are a variety of light intensity options. 3. The handheld open scanner returns to the suspicious