Basetech bt 300 wt wire tracker cable and lead finder basetech bt 300 wt p the bastech bt 300 wt is a wire tracker cable and lead finder that is used for the fast detection of pairs of wires cables and lines using the continuity check line and polarity test p p the bt 300 wt consists of a transmitter and receiver the transmitter sends a reference signal on the line to be followed and this signal can be detected with the receiver and so the cable can be identified p p the power to