The start standard AC voltage detection range of the tester: over 48/lOV.
Press the switching button for AC voltage (S), the detection range indicator lights up, and the detectable voltage range of the tester is about 12-1000V.
Press the AC voltage detection (S) button again, the detection range indicator lights off, and the detectable voltage range of the tester is about 48-lOv.
Automatic shut-off function If the tester is not operating and no voltage signal is detected by the tester within 5 minutes, the tester will automatically shut down.
Low voltage indicator: When the battery voltage is lower than about 2.6V, the power indicator flashes for 3 times while the buzzer makes a sound and then turns off. Please replace the battery in time.
