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frontpagephoinix | Staff posted Jul 23, 2026 2:56 PM

Klein Tools GFCI Receptacle Outlet Tester w/ LCD

$20

$25

20% off
Amazon
6.1K Views
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Deal Details
Amazon has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $19.98. Shipping is free w/ Prime or on $35+ orders

Lowe's has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $19.98. Shipping is free for My Lowe's Rewards Members (free to join), otherwise choose free store pickup where stock permits.

Note: Availability for pickup may vary by location.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • GFCI Receptacle Tester features a large backlit LCD readout of voltage and clear indication of wiring conditions
  • LCD readout shows the time required to trip a GFCI device
  • Detect and identify common wiring faults
  • Patent pending detection of Open Neutral Open Ground wiring fault
  • Auto-Hold is convenient for hard-to-reach outlets
  • Bright green and red LEDs illuminate for visual indicators
  • CAT II 135V safety rating
  • Durable 6.6-Foot (2 m) drop protection
  • For use on 3-wire, North American 120V electrical outlets only
  • Uses 2 x 1.5V AAA batteries (included)

Editor's Notes

Written by Nate650 | Staff
  • About this deal:
    • Our research indicates that this offer is $5.01 lower than the next best available price from a reputable merchant with prices starting from $24.99.
  • 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 $19.98. Shipping is free w/ Prime or on $35+ orders

Lowe's has Klein Tools GFCI Outlet Receptacle Tester w/ LCD (RT250) on sale for $19.98. Shipping is free for My Lowe's Rewards Members (free to join), otherwise choose free store pickup where stock permits.

Note: Availability for pickup may vary by location.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • GFCI Receptacle Tester features a large backlit LCD readout of voltage and clear indication of wiring conditions
  • LCD readout shows the time required to trip a GFCI device
  • Detect and identify common wiring faults
  • Patent pending detection of Open Neutral Open Ground wiring fault
  • Auto-Hold is convenient for hard-to-reach outlets
  • Bright green and red LEDs illuminate for visual indicators
  • CAT II 135V safety rating
  • Durable 6.6-Foot (2 m) drop protection
  • For use on 3-wire, North American 120V electrical outlets only
  • Uses 2 x 1.5V AAA batteries (included)

Editor's Notes

Written by Nate650 | Staff
  • About this deal:
    • Our research indicates that this offer is $5.01 lower than the next best available price from a reputable merchant with prices starting from $24.99.
  • About this product:
  • About this store:

Original Post

Written by phoinix | Staff

Community Voting

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+66
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7 Comments

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Jul 23, 2026 3:59 PM
4.1K Comments
Joined Mar 2006
skinnywallet42Jul 23, 2026 3:59 PM
4.1K Comments
Funny thing I was going to post this AM, as I had a price drop alert and bought it. It's been hovering around $25 since Black Friday.
1
1
Jul 24, 2026 1:22 AM
9 Comments
Joined Nov 2018
UpbeatMountain634Jul 24, 2026 1:22 AM
9 Comments
I want this one
Jul 24, 2026 2:47 PM
2.8K Comments
Joined May 2007
eeagleJul 24, 2026 2:47 PM
2.8K Comments
Fluke ST120 GFCI Socket Tester is just a couple bucks more; it was only $10 a few months ago when I purchased it, so the Klein price is just OK IMO.
https://www.amazon.com/dp/B0B3VC2...in_title_5
Pro
Jul 24, 2026 8:38 PM
5.2K Comments
Joined Jun 2006
KO3bIPb
Pro
Jul 24, 2026 8:38 PM
5.2K Comments
1
Jul 24, 2026 10:00 PM
98 Comments
Joined Nov 2012
EricS8683Jul 24, 2026 10:00 PM
98 Comments
I've got this, the screen is helpful for verifying voltage, and the lights for correct wiring. The one downside compared to a simpler tester is that this one won't work at all if the batteries are dead
Jul 25, 2026 3:50 PM
1.2K Comments
Joined Nov 2012
darksiderisingJul 25, 2026 3:50 PM
1.2K Comments
Quote from eeagle :
Fluke ST120 GFCI Socket Tester is just a couple bucks more; it was only $10 a few months ago when I purchased it, so the Klein price is just OK IMO.https://www.amazon.com/dp/B0B3VC2...in_title_5
Spend a couple more bucks and get the one with the beep.
Today 3:49 PM
50 Comments
Joined May 2015
RinsbaneToday 3:49 PM
50 Comments
Quote from eeagle :
Fluke ST120 GFCI Socket Tester is just a couple bucks more; it was only $10 a few months ago when I purchased it, so the Klein price is just OK IMO.https://www.amazon.com/dp/B0B3VC2...in_title_5
My Amazon is showing a coupon for this at $15.04. YMMV but worth a look if anyone wants this one over the Klein.

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