Profile: Tasco, Inc. specializes in providing electrical testers. Circuit mapper set includes transmitter, receiver, carrying case, circuit clamps, batteries, circuit identification pad and manual. Both transmitter and receiver feature automatic shut-off for longer battery life. Circuit identification is indicated by a large digital LED readout on the receiver. This product can be used on energized or dead systems. The Inspector II™ is a rugged test unit designed specifically for electricians and maintenance personnel. It will find poor splices and connections, incorrect wiring, undersized wiring, faulty GFCI's, incorrect line voltage and poor ground lines.