The handheld Extech 42525A infrared thermometer features a Type K Input for wide air, liquid, or
surface temperature measurements. The Extech 42525A infrared thermometer's Type K thermocouple
has a temperature range of -148 to 2372°F (-100 to 1300°C), while the infrared thermometer
has a temperature range of -4 to 752°F (-20 to 400°C).
The non-contact Extech 42525A infrared thermometer has a built-in laser point to help you identify the
surface target area. Adjustable emissivity is a feature of the Extech 42525A infrared thermometer to
correct for surface finish.
Infrared Temperature Measurement - Technology Explained:
Infrared thermometers measure temperature from a distance by detecting the amount of
thermal electromagnetic radiation emitted from the object being measured. This allows users
to accurately measure surface temperatures in hazardous or hard-to-reach places, or other
situations in which non-contact temperature measurement is desirable. Infrared thermometer
technology is useful in a wide range of applications – including industrial, laboratory, food service,
fire fighting, hobby, and home use.
While the technology is relatively simple, the myriad of names given to these devices can be
confusing. "Laser Thermometers" makes reference to the laser that helps aim the thermometer.
"IR Sensors" and "IR Thermometers" make use of a common abbreviation for "infrared".
"Non-Contact Thermometers" is descriptive of the device's ability to measure temperature from
a distance. "Radiation Pyrometers" is a scientific/technical term for these devices.
