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IR / Infrared Thermometer, -50°C to +760°C, 2 %


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Manufacturer Part No:
Order Code:
Also Known As:
GTIN UPC EAN: 793950425404
Technical Datasheet:
42540   Datasheet
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-50°C to +760°C





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Technical Docs (1)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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Product Overview

The 42540 from Extech Instruments is a high temperature IR thermometer. This 16:1 infrared thermometer with laser pointer measures surface temperature up to 1400°F (760°C) with a built-in laser pointer that identifies target area and improves aim. High 16 to 1 distance to target ratio measures smaller surface areas at greater distances. MAX/MIN/AVG/DIF features display highest, lowest, average and MAX minus MIN values. The built-in laser pointer identifies target area and improves aim. Adjustable high/low alarm alerts user visually and audibly when temperature exceeds programmed limits. The basic accuracy is ±2%rdg or 4°F (2°C) <932°F (500°C), ±(2.5%rdg + 5°)>932°F (500°C) and maximum resolution is 0.1°F/°C. It is capable of non-contact IR temperature measurements at touch of a button. The built-in laser pointer increases target accuracy while the backlit LCD and handy push-buttons combine for convenient, ergonomic operation. With proper use, it will provide years of reliable ser
  • Widest temperature range from -58 to 1400°F (-50 to 760°C), emissivity from 0.1 to 1.00 (adjustable)
  • Built-in laser pointer for easy targeting, high resolution of 0.1° up to 199.9°
  • Overrange indication, automatic power off, CE approved
  • Large backlit display, automatic data hold & automatic power off
  • 0.10 to 1.00 adjustable emissivity for better accuracy on different surfaces
  • MAX/MIN/AVG/DIF features display highest, lowest, average and MAX minus MIN values
  • 4.5 digit backlit LCD display with function indicators, emissivity from 0.1 to 1.00 (adjustable)
  • Operating temperature range from 0°C to 50°C, display rate is 1second
  • Adjustable emissivity for better accuracy on different surfaces
  • Dimension is 3.9inch x 2.2inch x 9inch (100mm x 56mm x 230mm) and weight is 290g


Test & Measurement


42540 IR thermometer, 9V battery, Hard carrying case.


Do not point the beam toward anyone's eye or allow beam to strike the eye from a reflective surface.


Use extreme caution when the laser pointer beam is on.

Also Known As

GTIN UPC EAN: 793950425404

No Longer Manufactured


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