(i) Before using a tester of the full voltage level according to the rated voltage of the equipment being tested.

(ii) Before testing, the tester should be self-tested. When using, the self-test conductive metal switch and the electric shock probe must be pressed at the same time.

The test indicator emits an intermittent oscillating sound and light signal, which proves that the tester is in good condition and can be tested. At this time, the telescopic insulating rod can be pulled apart for testing. The hand cannot exceed the specified safety ring. The tester contact and the level of charged body touch, and an intermittent sound and light signal can be emitted to indicate that there is electricity, otherwise it means that there is no electricity.

(iii) Change the battery. Open the upper cover of the tester to change the battery. The circuit of this product works in electronic automatic shutdown, long-term standby, open when there is a signal input, and automatically shut down when there is no signal. The power consumption is small and there is no need to change the battery frequently. Therefore, 4 AG13 oxygen silver batteries with a voltage of 6V are used. Please change the battery when the self-test cannot emit sound and light signals.

(IV) When testing electrical equipment with a tester, the tester should follow the electrical safety work procedures. To ensure personal safety, please conduct preventive tests regularly according to the electrical safety regulations.