Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this voltage tester for reliability and intuitive light indicators that clearly show voltage levels without complex displays. The built-in flashlight significantly improves visibility in dark panels, while the compact design and probe storage snap-back feature earn consistent approval. Most appreciate the confidence it provides for safely testing outlets and verifying breakers are off. A small number mention probe tips feel too short for stripped wires, the plastic covering occasionally slides off, or the GFI button trips too easily. Despite these minor issues, reviewers consider it an indispensable, well-built tool that outperforms cheaper alternatives.
Customer review summary generated by AI, including incentivized reviews.....
Would Not RecommendThey were ok
Must-Have Tool for Safe & Accurate Outlet Testing
The Klein Tools RT210 GFCI Outlet Tester is an essential device for anyone who works with electrical outlets. This compact tester plugs directly into any standard 3-prong receptacle and uses bright, easy-to-read LED lights to instantly show the wiring condition — open ground, open neutral, open hot, hot/ground reverse, hot/neutral reverse, or correct wiring. I’ve used it on dozens of outlets in my home and rental properties, and it has never given a false reading. It’s incredibly simple to opera...
Necessary tool in an older home
Would RecommendWorks well, good size
Fast tester
Would RecommendGave accurate reading
Nice tool
Would RecommendGreat for testing the outlets before buying a home
From Dual Range Non-Contact Voltage Tester with Flashlight, 12 to 1000V AC Verified Purchaser
Great value voltage tester.
Would RecommendThe tester works great on receptacles and insulated wires. It even works on GFI receptacles unlike the cheaper model.
From Dual Range Non-Contact Voltage Tester with Flashlight, 12 to 1000V AC Verified Purchaser
Easy to Use
Would RecommendThe product is super easy to use and is accurate, which helps to speed up projects.
Good product
Would RecommendOkay
Great little GFCI Outlet Tester
Would RecommendI like the GFCI tester feature. This tester comes in handy for all types of outlets.
Voltage checker
Would RecommendVoltage checker, does the job
From Dual Range Non-Contact Voltage Tester with Flashlight, 12 to 1000V AC Verified Purchaser
Beeps
Would RecommendEase of operation
From Dual Range Non-Contact Voltage Tester with Flashlight, 12 to 1000V AC Verified Purchaser
Does the job for AC only with a built in light.
Would RecommendCompact and has a light, wish it did low voltage DC also.
From Dual Range Non-Contact Voltage Tester with Flashlight, 12 to 1000V AC Verified Purchaser
Must have for your tool pouch
Would RecommendIn order to test the functionality of the ground fault circuit interrupter receptacles in my home, I bought this product to do just that. Personally, I love Klein test equipment. I would honestly recommend this product to people who work in the trades and homeowners alike.
Tools For Fools
Would RecommendGets the job done.
Verified Purchaser