Klein Tools AFCI and GFCI Outlet Tester (RT310)

Brand: Klein
Brand: Klein

Klein Tools AFCI and GFCI Outlet Tester

The Klein Tools AFCI and GFCI Outlet Tester is an electrical tester that will check the wiring condition of an outlet. It will also inspect and check AFCI and GFCI devices. Designed for use with American 120V electrical outlets, this tester is great for detecting and identifying common wiring faults. Powered by 3 AAA alkaline batteries, this outlet tester is a must-have for electricians and contractors so you can not only get the job done, but you'll also know when your tester needs a change of batteries with the low battery indicator.

Proudly Made in the U.S.A.


  • Detects the most common wiring faults in AFCI, GFCI, and standard electrical outlets
  • Test AFCI devices by simulating arc fault conditions
  • Test GFCI devices by simulating ground fault conditions
  • Capable of detecting a dual-open wiring fault with simultaneous open neutral and open ground wires
  • Tester delivers a clear visual indication of the wiring condition at the electrical outlet
  • Designed to test North American-style grounded electrical outlets in 120V AC circuits
  • Electrical plug is on a 10" flexible electrical cord to access electrical outlets in difficult to reach locations
  • Powers off automatically after 2 minutes of non-use to conserve battery

Included Accessories:

  • 3 x AAA 1.5V Alkaline Batteries


  • Power Source: 3 x AAA Alkaline Batteries
  • Material: PC/ABS Housing with Electronic Components
  • Impact Resistance: 2 meters
  • Safety Standards: CATIII 135V
  • Dimensions: 7.4" x 2.3" x 1.3"
  • Weight: 8.5oz


  • Read, understand, and follow all warnings and instructions before operating testers
  • Before each use, verify tester operation by testing on a known live and correctly wired receptacle and circuit
  • DO NOT use if the tester appears damaged in any way
  • The tester is intended for indoor use only. Tester is designed for use with 120V AC electrical systems. DO NOT connect to higher voltage electrical supplies
  • This tester only detects common wiring problems. DO NOT attempt electrical testing on an incorrectly wired outlet
  • Always consult a qualified electrician to resolve wiring problems
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