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Extech TG20 Wire Tracer and Tone Generator , Black

Extech TG20 Wire Tracer and Tone Generator , Black

Extech TG20 Wire Tracer and Tone Generator , Black. Features : Identify wire pairs, check continuity & test telephone line polarity. 20 degree C to 550 degree C ( 4 degree f to 1022 degree f) in two ranges. Adjustable sensitivity control improves wire identification and eliminates false detection. Easily trace wires from source to termination