Function description:
1. The circuit breaker search function automatically adjusts the sensitivity to quickly and accurately find the target circuit breaker.
2. Socket test function, test whether the three-pin socket connection is correct.
Beep warning and light prompts.
3. Flashlight lighting function.
4. Battery low pressure warning.
5. Applicable to AC 110V.
6. Working temperature: 0-50 degrees Celsius.
7. Material: ABS.
8. Power: 1 x 9V battery (not included).
9. Applicable to home, office, power grid transformation, installation and acceptance projects.

Warning:
Do not use when the voltage exceeds 120V / 230V AC. You can turn on the flashlight in a dark environment.

Maintenance:
1. Wipe clean with a dry cloth.
2. When the yellow LED is lit, unscrew and remove the cover and insert a new 9V battery so that the MS5902 maintains a good balance.