OPERATION INSTRUCTION

The tester can be used to test DC 6-12V circuits with POWER ON. Great electrical automotive tool is designed mainly for testing automotive circuits. NOTES: Do not use the tester to test any circuit with voltage above 15V, it is not recommended to use the tester to perform measurements on sensor or computer wiring.

Select a sutibale probe according to test need and attach it to the handle. Attach the tester’s alligator clip to a good ground(such as the vehicle’s frame or the point where the vehicle’s negative battery cable ends.

 Widely Used