Extech CT20 Remote and Local Continuity Tester with Remote Probe, Audible Tone, Long-Distance Cable Testing, LED Indicators, Hands-Free Operation for Electrical, HVAC, Telecom and Low-Voltage Work

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RELIABLE CONTINUITY TESTING: Quickly check for shorts and opens in cables and wires. Perfect for electricians and DIYers working on home wiring, automotive circuits, or remote cables. ONE-PERSON OPERATION: Features a unique detachable Remote Probe that allows a single user to identify and label long-distance wire runs (up to 10,000ft/3,000m) without needing an assistant. LED & AUDIBLE INDICATORS: Bright flashing LED and loud pulsating beeper provide clear signals even in noisy environments. Includes a "Local" and "Remote" mode to ensure total circuit accuracy. PERFECT FOR LONG-DISTANCE CABLE RUNS: Ideal for checking wiring across rooms, hallways, or entire buildings with the included remote probe, saving time on large-scale installations and maintenance tasks. HEAVY-DUTY DESIGN: Built for the field with a rugged housing and professional-grade alligator clips for secure connections during testing.