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Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip

  • Based on 7,243 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 21
Order within 19 hours and 44 minutes
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Style: NCVT


Pattern Name: Tester


Features

  • NON-CONTACT DETECTION of AC voltage in cables, cords, circuit breakers, lighting fixtures, switches, non-tamper-resistant outlets, and wires
  • CLEAR INDICATION: Bright LED illuminates green to indicate tester is operational and flashes red and emits a beeping alert when voltage is detected
  • BROAD APPLICATION with a 50 to 1000V AC power detection range
  • CONSERVE BATTERIES with auto power-off function
  • LIGHTWEIGHT AND DURABLE compact design with a convenient clip fits securely in pocket; 6.6-Foot (2 m) drop protection
  • TRUSTED SAFE with a safety rating of CAT IV 1000V
  • RECOMMENDED for non-tamper-resistant outlets; For tamper-resistant outlets, use Cat. Nos. NCVT-2P or NCVT-3P in low voltage mode

Description

Klein Tools Non-Contact Voltage Tester detects standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, non tamper-resistant outlets and wires. A bright green LED indicates the tester is powered on. It changes to red and an audible tone sounds when voltage is detected. For more than 160 years, Klein Tools has manufactured premium-quality, professional- grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Brand: KLEIN TOOLS


Power Source: Battery Powered


Style: NCVT


Color: Green,Red,Yellow


Item Weight: 22.68 g


Power Source: Battery Powered


Minimum Operating Voltage: 50 Volts


Upper Temperature Rating: 60 Degrees Celsius


Measurement Type: Voltmeter


Maximum Operating Voltage: 1000 Volts


Style Name: NCVT


Color: Green,Red,Yellow


Item Weight: 22.68 g


Item Dimensions: 5.5 x 0.72 x 1 inches


Specification Met: Cat Iv 1000v


Brand Name: KLEIN TOOLS


Model: NCVT1P


UPC: 092644693700


Warranty Description: Please refer to attached warranty document for information


Manufacturer: Klein Tools


Global Trade Identification Number: 00


Part Number: NCVT1P


Included Components: Instructions and 2 x AAA 1.5 Volt Batteries


Item Type Name: Klein Tools NCVT1P Voltage Tester, Non-Contact Voltage Detector Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Work as intended
Style: NCVT Pattern Name: Tester
Works as advertised after more than several projects. A no frills product from a trusted manufacturer that tells you if a circuit is live or not. Would buy again.
Reviewed in the United States on June 11, 2026 by Amazon Customer

  • Very useful, simple tool
Style: NCVT Pattern Name: Tester
Very easy to use tool, works as advertised.
Reviewed in the United States on June 9, 2026 by Michael G.

  • New water heater and light fixtures DONE!
Style: NCVT Pattern Name: Tester
Been doing some electrical work aroubd house. I'm writing this review months later so it works swell! One thing I've noticed it will get off ghost beeps or w.e. false detection of power? Idk its probably my ignorance.
Reviewed in the United States on May 25, 2026 by Ynot

  • Works great
Style: NCVT Pattern Name: Tester
Does what is supposed to do. Indicator that it's working is worth the extra$
Reviewed in the United States on June 17, 2026 by Susan S

  • Works great!
Style: NCVT Pattern Name: Tester
Works as it should. Not crazy about how the two AAA batteries are installed under black cap. Be very careful installing because the small metal tangs bends very easily and can cause intermittent operation if not touching the board contacts perfectly.
Reviewed in the United States on December 1, 2025 by Jeff

  • One of those good tools you wonder why you never had before
Style: NCVT Pattern Name: Tester
Saw a youtube video on how to determine what bulb is out on xmas lights and the guy recommended it. Works great.
Reviewed in the United States on May 19, 2026 by Country guy

  • It works!!
Style: NCVT Pattern Name: Tester
Was going to return this as it looked much like a Dollar shop gadget but it ended up saving my life it really works and easy to use. So I’m Keeping it and glad I purchased.
Reviewed in the United States on May 24, 2026 by Jill Windsor

  • Handy for safety
Style: NCVT Pattern Name: Tester
Very useful to ensure power is off on a circuit.
Reviewed in the United States on June 11, 2026 by Amazon Customer

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