Klein Tools RT390 Circuit Analyzer

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 device 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.

• Clear Color Lcd Display: Circuit analyzer with large color LCD provides easy-to-understand results for wiring faults, AFCI, GFCI, voltage drops, and device trip time
• Comprehensive Wiring Fault Detection: Detect and identify common wiring faults in standard, AFCI, and GFCI electrical outlets, ensuring thorough evaluation
• Dual Wiring Fault Detection: Capable of detecting dual wiring faults, including open neutral and open ground, enhancing safety measures
• AFCI AND GFCI Device Inspection: Inspect AFCI and GFCI devices, measuring trip time and trip current for accurate functionality assessment
• Load Testing Capabilities: Conduct 12A, 15A, and 20A load testing to measure percentage voltage drops, providing valuable insights into electrical performance