• For use with 120V AC 3-Wire Electrical Outlets
• Large LCD Color Display
• Detect and identify common wiring faults in standard, AFCI, and GFCI electrical outlets
• Detects dual (open neutral/open ground) wiring faults
• Inspect AFCI and GFCI devices; including trip time and trip current

The Klein Tools RT390 is a Circuit Analyzer that tests the wiring conditions at an electrical outlet, displays AC line voltage, inspects AFCI and GFCI devices with time to trip devices, and performs voltage drop tests at 12A, 15A, and 20A current loads. Results are easy to understand with large, color LCD. The tester is designed for use with North American 120V AC 3-wire electrical outlets. Batteries, instructions, and pouch included.