RT390 Circuit Analyzer With Large Color LCD For Quick, No Nonsense Wiring Fault Checks, AFCI And GFCI Tester, Voltage Drop Measurement, And Real Time Trip Time Display

RT390 Circuit Analyzer with LCD for 1-unit wiring faults
✔️ 1-unit circuit tester with color LCD, AFCI/GFCI tests

The RT390 is a handheld circuit analyzer that checks wiring faults at outlets, inspects AFCI and GFCI devices, and measures voltage drop under load. It’s designed for North American 120V AC 3-wire outlets and helps professionals quickly verify electrical safety and device performance.

✅ Large color LCD display for clear results
✅ Detects wiring faults in standard, AFCI, and GFCI outlets
✅ Dual wiring fault detection for open neutral and open ground
✅ Inspects AFCI and GFCI devices with trip time and trip current
✅ Load testing at 12A, 15A, 20A with voltage drop readings
✅ Auto power-off after 5 minutes of inactivity
✅ Detachable cord for easy storage and handling
✅ Works with North American 120V AC 3-wire outlets, CAT III 135V

💡 What is a circuit analyzer used for in electrical work? This handy tool helps professionals quickly validate outlet wiring, check AFCI/GFCI protection, and measure voltage drop under load. - verify wiring faults across standard, AFCI, and GFCI outlets - confirm trip times and currents for protection devices - assess electrical performance with load tests at 12A, 15A, 20A