Description
The Extech CT20 is an electronic tool for electricians, wiring installers, alarm installers, and other professionals who need to regularly check circuit continuity and identify wires. It allows a single user to quickly identify and label two wires even when the ends of the wires are located in different rooms. It allows wire lengths up to 3000 meters (10,000 feet), with a minimum gauge of 26. The CT20's Remote Continuity mode allows the user to test continuity and identify two or more wires simultaneously.
Ref. CT20