24 Volt Auto Electrical Wiring Test
$7.95
{{option.name}}:
{{selected_options[option.position]}}
{{value_obj.value}}
Humming sound indicates voltage being detected. Connect the clamp to a negative contact Connect the tip of the tester to a positive contact. A red or green light on the tester will turn on and a humming sound will indicate that current is present. The light bulbs act as a diodes allowing current to flow in one direction only to avoid a back flow or shock. TMI560
Show More
Show Less