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Extech DV40 AC Voltage Detector + IR Thermometer

Extech DV40 AC Voltage Detector + IR Thermometer
sku: DV40

  • Dual functionality - both a voltage detector and an infrared thermometer
  • AC voltage detection range from 50 to 1000V
  • Measure surface temperatures from -20 to 445°F (-30 to 230°C)

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£25.00 Incl. VAT £30.00
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Extech DV40 AC Voltage Detector + IR Thermometer Details

Hold this detector near to a suspected voltage source to detect live voltage, then flip it round and use the built-in IR thermometer to measure temperature levels!

Two testers in one, the Extech DV40 is both a non-contact AC voltage detector and an infrared thermometer. It's a completely unique instrument that's ideal for checking electrical components etc for voltage presence and heating issues.

The voltage detector built-into the DV40 can detect AC voltage from 50V to 1000V. Once detected, the tip of the unit will start to glow with a red light to alert the user (the tip is also narrowed for insertion into outlets or against wire insulation).

To read IR temperature levels, simply hold the detector as close as possible to the source to measure temperature from -20 to 445°F (-30 to 230°C). Values can be measured in either Celsius or Fahrenheit and are shown on the small built-in screen on the detector's body. The IR thermometer also has fixed 0.95% emissivity (catering for 90% of surface applications) and 1:1 distance to target ratio.

Extech DV40 AC Voltage Detector + IR Thermometer Key Features

  • AC voltage detection range from 50 to 1000V
  • Built-in infrared thermometer - measure surface temperature without contact from -20 to 445°F (-30 to 230°C)
  • LCD display of temperature measurements with selectable °F/°C
  • Fixed 0.95% emissivity covers 90% of surface applications
  • 1:1 distance to target ratio
  • Tip illuminates when AC voltage is detected
  • Tip fits against outlets or against wiring insulation
  • Low battery indicator
  • Automatic power off
  • Rugged, double-moulded housing

What's Included?

  • Extech DV40 AC Voltage Detector
  • Pocket Clip
  • 3 x LR44 Batteries
Technical Specs

Part Code: DV40

Extech DV40 Technical Specifications

Display 9999 count LCD
IR Temperature Range -20 to 445°F (-30 to 230°C)
Basic Accuracy ±2% of rdg or ±4°F/2°C (whichever is greater)
Max Resolution 0.1°F/0.1°C; 1°F/°C
Emissivity 0.95% fixed
Field of View (Distance to Target) 1:1
NCV Voltage Sensitivity 50 to 1000V AC
Bandwidth 50/60Hz
Detection Range <1"
Safety Category CAT III 1000V
Dimensions (L x D) 6.25 x 1" (159 x 25mm)
Weight 1.48oz (42g)

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Review by Paul (Posted on 19/09/2014)


Bought this volt stick to save on the overall postage price of my order.
Was very surprised how good it is.

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