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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
493
Review
 4.7 out of 5
496 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.
496 Customer Reviews

Does what it's meant to do

I'm not an electrician, but this was helpful in a small house project for a non-expert.

June 16, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Must have to check if there is electricity. Be saf

Must have when you are a dyi

June 14, 2026
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Good stuff

June 14, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Does not need to touch bare copper to get signal

Would Recommend

Verification for continuity

June 12, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Voltage Tester

Would Recommend

I bought this voltage sensor for my son so that he wouldn't work on electrical projects without first turning off the circuit breaker.

June 12, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Does what it says.

Would Recommend

Does what it says. Very good for quick checks without a VOM.

June 10, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Excellent Product

Would Recommend

Works great out of the box. Batteries included. Essential safety device.

June 9, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Simple to use

Simple to use

June 9, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Does one thing and does it perfectly.

Would Recommend

Easy to use and familiar Klein quality.

June 9, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Easy to use

Would Recommend

Easy to use

June 8, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Easy to use

Would Recommend

Handy one handed device to make sure the power is off

June 7, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Need to know if a line is hot? Pick this up.

Would Recommend

I needed to know if I was going to get a tingling feeling if I started working on a junction box. Since the fuse box wasnt properly labeled, this was a true lifesaver. Couldnt recommend this product enough. Super simple to use.

June 7, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Great troubleshooting tools.

Would Recommend

Just what I needed.

June 6, 2026
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Works as intended

Would Recommend

Works as intended. Never had an issue with this. Use it to make sure i dont have current flowing through an outlet and vide versa.

June 6, 2026
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Helps with electrical problems

Would Recommend

Great

June 5, 2026
From Non-Contact Voltage Tester Pen, 50 to 1000V AC Verified Purchaser
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Great for home projects

Would Recommend

Works great for the price

June 3, 2026
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