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Extech CT20 Remote & Local Continuity Tester

Brand : Extech
Categories : Test & Continuity , Electrical Tools

The CT20 is an electronic tool for electricians, alarm, cable installers and others who routinely need to check circuits for continuity and also identify cables and wires. It allows a single user to quickly identify and label two wires even when the wire ends are located in different rooms. It can accommodate test wire lengths up to 10,000-feet (3,000 meters), 26-gauge minimum. The CT20’s Remote Continuity mode allows the user to check continuity and to identify two or more cables/wires simultaneously.

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Convenient to Use

Lightweight and pocketsized, clips on and hangs from the cable(s) under test without falling off

Flashing Remote Probe

Two lead, bi-color (red/green) LED probe allows a single user to identify up to three wires or cables at a time

Suitable For Many Applications

Great for Electricians and Helpers, Cable TV and Audio System Installers, Alarm Technicians, Plumbers, HVAC Installers etc.


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