Check the listing for details. Power Probe ECT3000B Smart Short Circuit Finder Transmitter and Receiver Kit. Condition: New. Listed at 132.99 USD. Features and Benefits:Signal locking will show the correct direction to a short to groundSignal distance bar indicates distance height from short to groundLed light on the receiver illuminates work space area.10-minute shut off timeUpdated ergonomic housing The new Power Probe ECT3000B electrical short and open finder makes locating short and open circuits quickly and more accurately than ever before. When the ECT3000 Transmitter is connected to an isolated circuit, it will quickly determine if the circuit has an open or if the circuit is shorted to ground. The ECT3000 receiver is designed to detect the signal emitted from the transmitter, and its adjustable height sensitivity feature gives you more accuracy than ever before.