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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 7,371 reviews
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Availability: In Stock.
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Arrives Tuesday, Sep 8
Order within 10 hours and 6 minutes
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Color: NCVT


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: NCVT


Item Weight: 22.68 g


Power Source: Battery Powered


Minimum Operating Voltage: 50 volts


Upper Temperature Rating: 60 °C


Measurement Type: Voltmeter


Maximum Operating Voltage: 1000 volts


Style Name: NCVT


Color: NCVT


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


Unit Count: 1 Count


UPC: 092644693700


Number of Items: 1


Warranty Description: See Manufacturer Website


Manufacturer: Klein Tools


Global Trade Identification Number: 00


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


Part Number: NCVT1P


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 8

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.

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Top Amazon Reviews


  • Seems solid, dependable quality, increases safety.
Color: NCVT
Nice tool, good quality. Seems that I need to get into an electrical box every other year or so. I fav a forty plus year old contact tester. But I learned about these non contact testers and had a good experience with Klein. This tool is really good. It has a green led to make it clear that the unit is functioning and the batteries are still good. That’s important to keep you safe. It makes it very clear when there is a hot wire. It made my swap out of old smoke detectors safe. While I first isolated and cut the breaker, this tool made it sure there were no hot wires in the box. Nice and safe. Highly recommend this tool. And Klein seems like solid quality. ... show more
Reviewed in the United States on July 30, 2026 by Riley Lewis

  • High quality brand that works
Color: Orange/Black
Used to detect live wires. Blue, red, and green. Various levels of red means be careful extra. Very easy to use and high quality.
Reviewed in the United States on August 4, 2026 by Ka Y

  • Work as intended
Color: NCVT
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 Mark A

  • Klein Tools
Color: NCVT
Good voltage sensor, easy to operate
Reviewed in the United States on July 2, 2026 by Mr Freeze

  • Good electrical tool - always a must have
Color: NCVT
It is good to have this voltage tester available when dealing with electricity
Reviewed in the United States on June 4, 2026 by Ron

  • Beep = Danger. No Beep = I Live Another Day.
Color: NCVT
This Klein voltage tester is now my emotional support tool. I walk around the house tapping outlets like a low‑budget electrician, and it beeps with the confidence of a smoke alarm. The green light says “you’re fine,” the red light says “don’t touch that unless you want a new hairstyle.” Small, loud, accurate — and it makes me feel way more qualified than I am. ... show more
Reviewed in the United States on July 12, 2026 by Gprice144

  • Good price, fast shipping
Color: NCVT
Good price, fast shipping
Reviewed in the United States on August 8, 2026 by marcelino

  • Tool
Color: NCVT
As described
Reviewed in the United States on July 30, 2026 by jason brewer

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