Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this electrical outlet tester for its accuracy and ease of use, with most highlighting its ability to instantly diagnose wiring faults like open grounds, reversed polarity, and open neutrals. The clear LCD display and color-coded indicators make results easy to interpret, while the GFCI trip time measurement feature is frequently cited as valuable. Reviewers emphasize the intuitive, plug-and-play design requires no electrical expertise, making it ideal for homeowners and professionals alike. Most describe it as reliable and durable, with electricians noting professional-grade performance. A few mention limitations with 240V circuits or occasional issues with abnormal voltage readings, though most consider it an essential diagnostic tool.
Customer review summary generated by AI, including incentivized reviews.Nice tool
Would RecommendEasy to use and more detailed info than basic circuit testers.
Verified Purchaser
Why have the model# infer that it'll measure 250v?
In a perfect world this would be a great unit since it tells you the standard voltage, but I was given this RT250 and thought it would be great if it will tell you the outlet or panel was miswired, and I was going to test some 208v outlets, and it took a bunch of Googling to find out that over voltage will kill it, that the max is 135v. Logically it shoud measure just over what a miswire would put out, so it defeats the purpose.
From Klein Tools
Nice Unit
Works perfectly. The only drawback is that it only works on 3 prong outlets which I knew when I bought it.
Verified Purchaser
Great product!
Would RecommendPurchased for a maintenance tech and he uses it often. Works as described.
Verified Purchaser
Recept Circuitry Tester
Would RecommendWorking on receptacle wiring? Don't do the work without this tool. Keeps ya honest and accurate.
Verified Purchaser
GFCI RECEPTACLE TESTER
Would RecommendSimple to use
Home owner must have!
Would RecommendHad allot of electrical issues in my house and wanted to be able to check the voltage of each plug for irregularities. This made it a breeze and helped me diagnose the problem very quickly.
Verified Purchaser
It works
Would RecommendIt just works
Verified Purchaser
Worked as designed....no issues
Would RecommendWorked as designed....no issues
Verified Purchaser
G
Would RecommendGreat product
Verified Purchaser
Tester failed out of the box.
Would Not RecommendDid not work out of the box. I purchased this as a replacement for one that failed at 6 months of use. Obviously a quality control issue with this model.
Verified Purchaser