Circuit Tracer Kit Alert Type Sound CAT Safety Rating CAT III 600V Display Screen Type OLED Display Type Digital For Circuit Type Energized Non-Energized For Voltage Range 0 to 600V AC/DC Maximum Locating Depth 3 ft Maximum Resistance Not Applicable Operating Frequency 31 kHz Receiver to Transmitter Distance 2 100 ft Tracing Locations Floors Metallic Conduit Non-Metallic Conduit Walls Standards CE cULus N12966 Testing Functions Circuit Breaker Identification