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Klein Tools
Klein Tools RT210 Outlet Tester
$9.97$13.54across 65 retailers
The Klein Tools RT210 GFCI Receptacle Tester is ideal for anyone needing a reliable and durable tool to detect common wiring issues. It offers bright light indications and a straightforward design for ease of use. With its robust construction, it's built to withstand significant drops, making it a dependable choice for professionals and DIY enthusiasts alike.
Model: RT210UPC: 92644690273
Lowest at Amazon
$12.97 at AmazonLowest at any Popular Retailer
$12.58 at The Home DepotWhere to Buy
Prices last updated: May 11th 2026 4:02 am
Product Score
Based on professional reviews and customer feedback
7/10
Overall
7/10
Consumer
Why this score?
The Klein Tools RT210 GFCI Receptacle Tester receives a moderate score, praised for its reliability, ease of use, and clear readings on electrical issues, making it a solid value at its price point. However, customer concerns about inconsistent testing results, durability, and inadequate support from the manufacturer hint at quality control issues that potential buyers should consider.
8+ Excellent6-8 Good4-6 Average<4 Poor
Score
The Klein Tools RT210 GFCI Receptacle Tester receives a moderate score, praised for its reliability, ease of use, and clear readings on electrical issues, making it a solid value at its price point. However, customer concerns about inconsistent testing results, durability, and inadequate support from the manufacturer hint at quality control issues that potential buyers should consider.
7/10
Overall
Pros
- •Detects common wiring problems in standard and GFCI receptacles.
- •Provides clear indications with bright lights for the wiring status.
- •Durable design with drop resistance up to 6.6 ft (2m).
- •Easy to use with a light code key printed on the device.
Cons
Bottom Line
The Klein Tools RT210 GFCI Receptacle Tester is ideal for anyone needing a reliable and durable tool to detect common wiring issues. It offers bright light indications and a straightforward design for ease of use. With its robust construction, it's built to withstand significant drops, making it a dependable choice for professionals and DIY enthusiasts alike.
What Reviewers Are Saying
Praised
easy to use14%
reliable and accurate10%
Criticized
blows out GFI outlet5%
not very accurate5%
non existent warranty5%
Professional Reviews
Discussion
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