The CT8002 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, it requires no wire or clip connector to ground. The CT8002’s LED, sound and vibration indicators, allow users to check for power in less time that it takes to set-up a regular test light and find a suitable ground, and is designed for use in automobiles, trucks, tractors, trailers, RV’s, motorcycles, boats and any DC powered circuit from 3 to 28 volts.
This product can expose you to chemicals including Nickel and Chromium, which is known to the State of California to cause cancer, and Chromium, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Proposition 65 Warning
CT8002: voltage detection
In order for the CT8002 to detect a voltage (like in any other voltage measuring instrument) it requires a closed circuit (+ to –, or vice versa). In the CT8002 this circuit is established (closed) when a current goes through the tip (+), the internal circuit, the metal barrel of the CT8002, the body of the user, and finally ground. The amount of current flowing through the CT8002 and the user’s body is very small (in the order of a few micro Amperes), and the user’s body acts as a “ground wire” or the negative test lead of a voltage meter. The internal circuit of the CT8002 detects this current, which is used to turn on the buzzer and light indicators.