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Yellow pen-style tester with pocket clip and IR sensor tip

Klein Tools NCVT-4IR Non-Contact Voltage Tester with IR Thermometer

SKU CH-00Y7-R2ZKG

Detects 12-1000V AC without contact and measures -22 to 482°F surface temperature with 4:1 IR ratio

  • Team affiliation1 Piece
  • Key featuresBatteries, Cat Iv 1000v, Ip54, Battery Powered, true
  • Overall height6.26 L x 1.08 W x 1.21 H inches
  • Overall width6.26 L x 1.08 W x 1.21 H inches
  • Overall length6.26 L x 1.08 W x 1.21 H inches
  • Product weight0.11 lb (0.05 kg)
  • Non-contact AC detection from 12 to 1000V with LED and audible alerts
  • Built-in IR thermometer reads -22 to 482°F (-30 to 250°C) for HVAC diagnostics
  • 4:1 distance-to-spot ratio with laser pointer targets temperature area precisely
  • CAT IV 1000V and IP54 ratings protect against dust and water ingress
  • Compact 6.26 x 1.08 x 1.21 in pen design with pocket clip weighs .11 lb

HVAC Voltage Tester with IR Thermometer

The Klein Tools NCVT-4IR combines non-contact AC voltage detection from 12 to 1000V with an integrated infrared thermometer. It is built for HVAC professionals who need to verify live circuits and measure equipment temperatures in a single instrument. Visual and audible alarms confirm voltage presence quickly.

IP54 Pen Design with Pocket Clip

Rated IP54 for dust and water resistance, the tester survives job-site conditions while the pocket clip keeps it accessible. CAT IV 1000V rating supports work on service-entrance equipment. The pen-style body measures 6.26 L x 1.08 W x 1.21 H inches and weighs 0.11 pounds for comfortable all-day carry.

Laser-Targeted Temperature Readings

A 4:1 distance-to-spot ratio IR sensor reads from -22 to 482 degrees Fahrenheit (-30 to 250 degrees Celsius) with user-selectable units. The built-in laser pointer identifies the exact measurement area, reducing guesswork on ducts, motors and electrical panels. Batteries are included for immediate use.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $57.99
Pricier than about 81% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameaFe Power
Product typeClamp
Size & build
Overall height6.26 L x 1.08 W x 1.21 H inches
Overall width6.26 L x 1.08 W x 1.21 H inches
Overall length6.26 L x 1.08 W x 1.21 H inches
Product weight0.11 lb (0.05 kg)
More details
Team affiliation1 Piece

Questions about this item

What AC voltage range does the NCVT-4IR detect?

It detects AC voltage from 12 to 1000V with visual and audible indicators.

What are the exact dimensions of the tester?

The tester measures 6.26 L x 1.08 W x 1.21 H inches and weighs .11 pounds.

How do I switch between Fahrenheit and Celsius on the IR thermometer?

Use the mode button to toggle between -22 to 482 degrees Fahrenheit and -30 to 250 degrees Celsius.

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