The CT8007 is a computer safe, all solid state electronics circuit tester. Unlike regular test lights, this high-impedance circuit tester is safe to use around automotive computers, electronics, ecm's, sensors and air bags.
Rugged, built to last and simple to use, is self powered (no batteries needed) and it requires no wire or clip connector to ground. The CT8007's LCD display shows polarity, allowing users to check for power and ground in less time that it takes to set-up a regular test light. Specially designed for use in automobiles, trucks, tractors, trailers, RV's, motorcycles, boats and any DC powered circuit from 3 to 28 volts.