This Klein Tools Circuit Analyzer (RT390) is an essential, affordable tool for electricians, and can be used as a shared resource between multiple professionals. Identify common wiring faults in standard, AFCI and GFCI outlets, Inspect AFCI and GFCI devices. Perform percentage voltage drop tests at 12A, 15A and 20A. Display AC line voltage. This circuit analyzer powers off automatically after 5 minutes of inactivity to conserve battery life. To top it all off, the large color LCD screen makes it extremely easy to understand results, with no need to scroll through screens.
