1: Self testing before use:
Close the tester probe to any hot line,bestest ll will light uptogether with buzzer sound.lf the light and sound are weak,please replace the batteries inside.

2: Test Voltage present:
Close the test pin to live parts,the tester will light up togetherwith sound.

3: Replace batteries:
Please refer to the following picture to replace batteries

4: Don`t place the tester near high voltage.warning:
Check before use.
Never test the voltage which than 1000VACTest voltage range: 90V-1000V AC
IP54,IEC1010
AAA1.5×2
Battery life:6 hours for continious usingStandby for 1.5years.

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