1. Press the button lightly to turn it on, press and hold for 2 seconds to turn it off, if there is no operation for 5 minutes, it will automatically turn off.
2. Quickly press the LED light twice to switch between high-sensitivity and low-sensitivity detection states. LED remains on to indicate low sensitivity,
Blinking LED indicates high sensitivity. The default setting is low sensitivity.
3. When the battery power is low, the LED light is off and the tester cannot work normally. For example the test is
After the completion, the buzzer may emit a weak sound, the battery should be replaced in time to ensure that the tester can
normal work.
4. When the tester is close to the electric field, the red LED will flash and the buzzer will alarm, the higher the
The flickering frequency, the stronger the electric field is, the live wire and dark wire of AC can be judged by
Audible alarm.