Usage methods :
(Please turn on the mobile phone in flight mode before adjusting sensitivity)
First, turn on the device and turn the sensitivity button to 1-3 cells signal without alarm.
Second, moving the G319 slowly to the suspect detection to check the source of the signal.
When a signal source is detected, please further reduce the sensitivity to narrow the detection range.
Thirdly, it will detect the signals such as timing location, monitoring, wireless and signal monitoring.
At the same time, as the closer the distance is, the number of signal light will be unusually large and the detector will make a louder sound and the signal is not fading.