Extech DA50: Telescoping AC Current Detector
39" (1m) Non-Contact current detector (up to 1000A)
The DA50 detects AC Current (200mA to 1000A) in shielded wires, wires behind walls, metal circuit breaker and junction boxes. Telescoping probe extends to reach distance of 39" (1m). Comes with four LR44 button batteries and user guide.