The CT20 is a two-part system consisting of a master continuity tester/transmitter and a two lead, bi-color (red/green) LED remote probe. The continuity tester/transmitter is used for local continuity testing and remote wiring identification. The remote probe allows for single-person remote continuity testing when identifying cables, verifying polarity, or labeling long distance wire/cable runs. This lightweight, compact tester features bright flashing LEDs and a loud pulsating beeper, designed to be heard over high background noise.
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