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Extech 42512: Dual Laser InfraRed Thermometer

Fast response 30:1 InfraRed Thermometer with backlit dual LCD display

The 42512 is a dual laser IR thermometer. This IR thermometer features dual lasers for accurate targeting with a fast (0.15s) response time and has a backlit dual LCD display. Temperature range from -50 to 1000 Degrees Celsius (-58 to 1832°F). Complete with pouch case and 9V battery. CE certified.



  • Dual laser for accurate targeting with fast (0.15s) response time
  • At 30″ (76.2cm) distance two laser points converge to 1″ target spot
  • Temperature range: -58 to 1832°F (-50 to 1000°C)
  • 0.10 to 1.00 adjustable emissivity increases measurement accuracy for different surface
  • 0.1°F/°C max resolution


Specifications Range
Laser Convergence Distance 30″ (76.2cm)
Range -58 to 1832°F (-50 to 1000°C)
Repeatability ±0.5% or 1.8°F/1°C
Basic Accuracy ±(1% of rdg + 2°F/1°C)
Max resolution 0.1°F/°C
Emissivity 0.10 to 1.00 Adjustable
Field of View (Distance to Target) 30:1
Dimensions 5.7x4x1.6″ (146x104x43mm)
Weight 5.7oz (163g)


42512 English User’s Manual

42512 English Datasheet

42512 CE Declaration of Conformity