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Non-Contact Voltage and GFCI Receptacle Test Kit

Ratings & Reviews for Klein Tools Non-Contact Voltage and GFCI Receptacle Test Kit

4.7
524
Review
 4.7 out of 5
526 Reviews


92% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this non-contact voltage tester for its reliability, ease of use, and critical safety role. The device consistently detects live wires and confirms de-energized circuits, preventing dangerous mistakes and potential electrocution. Its intuitive, one-handed operation requires no training, making it accessible for professionals and DIYers alike. The compact, pocket-sized design with audio alerts enables quick checks on outlets, switches, and wiring. Customers describe it as an essential, affordable tool with included batteries and auto-shutoff. A few report inconsistent sensitivity or rare failures, but these concerns are vastly outweighed by overwhelming positive feedback.

Customer review summary generated by AI, including incentivized reviews.
526 Customer Reviews

Great tool!

Would Recommend

The product was very easy to use. The light and beeping features are very helpful as well as well as the side clip that’s convenient for multiple projects.

May 1, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Easy to tell if on/off

Would Recommend

works very well, good sensitivity

April 29, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Make your life easier!

Would Recommend

Great tool for any DYI er‼️

April 28, 2026
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good

Would Recommend

works as stated

April 28, 2026
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Good price

Would Recommend

Was a good price haven’t used it yet but I have had the same before so it should be hood

April 27, 2026
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Nice

Would Recommend

Affordable, easy to use and reliable.

April 26, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Worked great and inexpensive

Would Recommend

Perfect if you’re buying a new home or renting an apartment an easy to use inspection tool!

April 25, 2026
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Don’t get fried!

Would Recommend

Easy to use and super essential if you are sure everything is off before working on a socket or plug. One good zap and you won’t try to work on electrical again without it.

April 23, 2026
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Works well

Good product

April 23, 2026
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Read Instructions on Use

Would Recommend

Worked as expected and avoided electrocution.

April 22, 2026
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Works great

Would Recommend

Good price, nice product

April 22, 2026
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Very handy for detecting hot or not hot wiring

Would Recommend

Economical

April 21, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Save a life

easy to use

April 20, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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safety first

Would Recommend

These are must haves if you are going to rewire or install you need these always verify power is off before starting and check your polarity when finished

April 17, 2026
Verified Purchaser
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Less expensive than other prominently displayed.

Would Recommend

Serves its purpose.

April 17, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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