Klein Tools RT250 LCD Display GFCI Outlet Tester
Klein Tools RT250 LCD Display GFCI Outlet Tester
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Klein Tools

Klein Tools RT250 LCD Display GFCI Outlet Tester

4.5 stars out of 54 reviews
(4.5)|
54 ratings

Key item features

  • Advanced Display: Features a large, backlit LCD that provides clear voltage readings and indicates wiring conditions, including the time required to trip a GFCI device.
  • Fault Detection: Capable of detecting and identifying common wiring faults, with a patent-pending system for open neutral and open ground wiring fault detection.
  • User Convenience: Includes an Auto-Hold function for easy readings in hard-to-reach outlets and bright green and red LEDs for visual indicators of wiring status.
  • Safety Rating: Boasts a CAT II 135V safety rating, ensuring secure operation during electrical testing.
  • Durable Construction: Designed for durability with a robust 6.6 ft. (2 m) drop protection, enhancing its longevity in various work environments.
  • Specific Application: Exclusively designed for use on 3-wire, North American 120V electrical outlets to test wiring conditions and inspect GFCI devices.
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Current price is $28.01
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Columbus, 43215
Arrives by Sat, Mar 14
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Order within 12 hr 37 min
Sold by Electronic Inventory Online, Inc.
Fulfilled by Walmart
4.194214876033058 stars out of 5, based on 484 seller reviews(4.2)
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$24.97
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Shipping, arrives by Thu, Mar 19 to Columbus, 43215
Sold and shipped by Capitol Building Supply Inc dba Tanner Bolt
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Customer ratings & reviews

4.5 out of 5 stars
stars54 ratings36 reviews
How item rating is calculated
  1. 5 stars81% (44)
  2. 4 stars6% (3)
  3. 3 stars2% (1)
  4. 2 stars7% (4)
  5. 1 star4% (2)

Reviews summary

Pros
  • : Simple navigation with many features.
  • : Display is clear and easy to read.
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Showing 1-3 of 36 reviews

Oct 3, 2024
Kirk
Sold and shipped byCPO Commerce
5 out of 5 stars review

Verified Purchase

Any problems with low voltage? This will tell you. Checks wiring on receptacles and gfci receptacles. Love the fact that it also shows what your voltage is. Had a jumpered receptacle once and power was low due to corrosion from another. This would have told me everything from the start. great tool to keep on hand.

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Dec 18, 2025
CurlyTop
Sold and shipped byOptimus Outlet LLC
5 out of 5 stars review

Verified Purchase

Klein tools are very good

A outlet voltage tester with GFCI testing too. What a great device.

Helpful?50XNIFGAA1ZC754488784
May 27, 2025
MF
Sold byElectronic Inventory Online, Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Great GFCI tested

This is a very nice GFCI tested. The display of the current voltage is a nice additional benefit.

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