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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 6,739 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Sep 18
Order within 2 hours and 40 minutes
Available payment plans shown during checkout

Style: NCVT Pen


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 Pen


Color: Green,Red,Yellow


Item Weight: 22.68 g


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 5.5 x 0.72 x 1 inches; 0.8 ounces


Item model number ‏ : ‎ NCVT1P


Batteries ‏ : ‎ 2 AAA batteries required. (included)


Date First Available ‏ : ‎ July 23, 2021


Manufacturer ‏ : ‎ Klein Tools


Best Sellers Rank: #876 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Voltage Testers


#2 in Voltage Testers:


Customer Reviews: 4.7 4.7 out of 5 stars 6,739 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 18

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy to use and works like a charm
Style: NCVT Pen Pattern Name: Tester
It's a Klein tool, so you know you're getting quality. Built well, and isn't too expensive.
Reviewed in the United States on August 25, 2025 by B. Ferraro

  • Reliable and necessary!
Style: NCVT Pen Pattern Name: Tester
Definitely a good product
Reviewed in the United States on September 5, 2025 by Anthony

  • Trusty, compact and reliable
Style: NCVT Pen Pattern Name: Tester
Trusty, compact and reliable. Use this when doing DIY changes to outlets and switches. Really useful for seeing what wire is hot and neutral especially when the wires are old.
Reviewed in the United States on August 20, 2025 by Gato977

  • Durable product.
Style: NCVT Pen Pattern Name: Tester
Works great. Very sturdy product! I forgot it in my pants pocket and sent it through the clothes washer and dryer. It still works!
Reviewed in the United States on August 25, 2025 by Joshua Kirk

  • Watch the video…
Style: NCVT Pen Pattern Name: Tester
The media could not be loaded. HEADS UP! Returned one that did not reliably detect AC when tip inserted in wall outlet. Received a duplicate exchange which had the same issue but discovered it worked great on the plug, the charging cord, the lamp wire. Discovered in the fine print it is not compatible with some outlets - their design, thickness or if TF tamper resistant. So it works great but test behind the outlet, which is inconvenient but necessary with this product. ... show more
Reviewed in the United States on August 18, 2025 by thomas p rabette

  • Shockingly Good (get it?)
Style: NCVT Pen Pattern Name: Tester
Great for everything you’d need it for. Battery life is solid and takes batteries that aren’t hard to come by. It’s build sturdy enough to be trampled on by grown men. Loud enough to be heard through earbuds at a high volume. Saved me from actual death twice.
Reviewed in the United States on August 30, 2025 by Alec

  • Good time saver & safety tool
Style: NCVT Pen Pattern Name: Tester
Works great. Quickly identifies if wires are live or not
Reviewed in the United States on August 26, 2025 by Bill C.

  • Exactly what you need for quick reference
Style: NCVT Kit Pattern Name: Tester
Bought this to verify electricity status and it works great. For the size and function the price was right. Ordered and received quickly and so far they are durable.
Reviewed in the United States on August 21, 2025 by Zack

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