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phoinix | Staff 3.2K Views
Oct 14, 2026 5:06 PM

Klein Tools GFCI Receptacle Outlet Tester w/ LCD

$16

$25

36% off
Amazon
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Deal Details
Amazon has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $16. Shipping is free with Prime or on $35+ orders.

Home Depot has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $16. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • GFCI receptacle tester with large backlit LCD readout for voltage and wiring conditions
  • Displays trip time for GFCI devices
  • Detects and identifies common wiring faults
  • Patent-pending Open Neutral and Open Ground detection
  • Auto-Hold feature for hard-to-reach outlets
  • Uses 2 x 1.5V AAA batteries (included)

Editor's Notes

Written by powerfuldoppler | Staff
  • About this Deal:
    • This price matches the previous frontpage deal
    • Please see the original post for additional details and give the wiki and additional forum comments a read for helpful discussion.
    • Our research indicates that this offer is $3 lower than the next best available price from a reputable merchant with prices starting from $19.98
  • About this Product:
  • About this Store:

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $16. Shipping is free with Prime or on $35+ orders.

Home Depot has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $16. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Product Details:
  • GFCI receptacle tester with large backlit LCD readout for voltage and wiring conditions
  • Displays trip time for GFCI devices
  • Detects and identifies common wiring faults
  • Patent-pending Open Neutral and Open Ground detection
  • Auto-Hold feature for hard-to-reach outlets
  • Uses 2 x 1.5V AAA batteries (included)

Editor's Notes

Written by powerfuldoppler | Staff
  • About this Deal:
    • This price matches the previous frontpage deal
    • Please see the original post for additional details and give the wiki and additional forum comments a read for helpful discussion.
    • Our research indicates that this offer is $3 lower than the next best available price from a reputable merchant with prices starting from $19.98
  • About this Product:
  • About this Store:

Original Post

Written by phoinix | Staff

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7 Comments

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Yesterday 4:29 AM
31 Comments
Joined Dec 2024
WetTile64Yesterday 4:29 AM
31 Comments
Does the LCD on this one actually show the line voltage, or is it the pass fail lights with a screen? New house, half the outlets are a mystery, and a real voltage number would save me a trip back for the multimeter.
Yesterday 8:29 PM
111 Comments
Joined Feb 2007
osaferYesterday 8:29 PM
111 Comments
It's a great little device
Today 4:58 AM
2 Comments
Joined Jun 2019
WadeMcflyToday 4:58 AM
2 Comments
Quote from WetTile64 View quoted comment :
Does the LCD on this one actually show the line voltage, or is it the pass fail lights with a screen? New house, half the outlets are a mystery, and a real voltage number would save me a trip back for the multimeter.
Yes it shows line voltage
Pro
Today 3:08 PM
3.5K Comments
Joined Sep 2016
vid1900
Pro
Today 3:08 PM
3.5K Comments
Quote from WetTile64 View quoted comment :
Does the LCD on this one actually show the line voltage, or is it the pass fail lights with a screen? New house, half the outlets are a mystery, and a real voltage number would save me a trip back for the multimeter.
The display reads up to 150vac, and if it is above that, you get the " >150vac " to tell you that you probably have 2 hots on the outlet.

It holds the reading for a few seconds after being unplugged, so if you have a new house where all the outlets are Ground pin up (or an old house where switched outlets are Ground up) you can read the display without using your phone's camera.
1
Today 3:14 PM
71 Comments
Joined Dec 2011
chinese88Today 3:14 PM
71 Comments
Handy tool. I have two.
Today 3:19 PM
29 Comments
Joined Jun 2015
adilszToday 3:19 PM
29 Comments
Thanks OP
Today 4:25 PM
14 Comments
Joined Nov 2015
beestekToday 4:25 PM
14 Comments
This is a really nice plug tester

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