About the Klein Circuit Analyzer, 135V AC - RT390
No fault goes undetected—your diagnostic ace is here!
Power up your inspections with the Klein Tools RT390 circuit analyzer—an advanced diagnostic powerhouse built for serious electrical troubleshooting. Featuring a bold, full-color LCD display, this compact analyzer clearly reveals wiring faults, AFCI/GFCI test results, and precise voltage drop percentages with easy-to-read visuals. It doesn’t just find standard wiring issues—it also identifies dual faults like open neutral/open ground, helping you pinpoint complex problems with speed and confidence. With support for 12A, 15A, and 20A load testing, you can evaluate circuits under realistic conditions and uncover hidden issues before they become costly errors.
Engineered for versatility and efficiency, the RT390 lets you inspect AFCI and GFCI devices with detailed feedback on trip time and trip current—perfect for safety verification and compliance checks. Its detachable cord design streamlines storage, while the automatic 5-minute shutoff preserves battery life on the job. Built for 120V AC 3-wire North American outlets, this analyzer carries a CAT III 135V safety rating, giving you peace of mind in residential and light commercial environments. When every second counts and every circuit matters, trust the RT390 circuit analyzer to deliver fast, accurate, and reliable results with every test.
Klein Tools has been delivering premium-quality, professional-grade hand tools for tradespeople since 1857, earning a reputation for durability, precision, and innovation. Built to withstand the demands of jobsite conditions, every tool is engineered with practical features that work as hard as you do. Explore more of its dependable tools and gear up for your next project at PlumbersStock today.
