ATOBLIN Test Light Automotive, 3-60V DC LED Digital Circuit Tester, Heavy Duty Light Tester with Voltmeter, Auto Voltage Tester Electric Probe Test Pen for Fuse, Battery, Polarity

Needed to determine where a ground was located under my dash near the fuse box for a dash cam. This product allowed me to easily locate a car ground that I could use.

I have a few of these type of circuit testers, but this is the first that also reads the voltage and doesnt have just a dummy light. Overall it works good and is pretty accurate. Cord is long enough to give you freedom to move around and the ground clamp is solid. For the money I would get again.

Wish I had it sooner! This was surprisingly useful. Connects to either ground or positive circuit posts and indicates which you are testing, along with voltage present. Look forward to using it for tracing trailer wiring circuits.