Extech 42545 Infrared Thermometer

• Wide temperature range from -58 to 1832°F
• Up to ±2% accuracy
• High 50:1 distance to target ratio
• High resolution of 0.1° up to 199.9°
• Automatic Data Hold when trigger released
• Adjustable emissivity
• Auto power off
• Complete with 9V battery and hard plastic carrying case

The non-contact Extech 42545 infrared thermometer is equipped with a backlit illuminated
display for taking measurements at night or in areas with low background light levels. With
a 50:1 distance to target ratio, the Extech 42545 infrared thermometer measures smaller
surface areas at greater distances.

The high temperature Extech 42545 infrared thermometer has a temperature range of -58
to 1832°F (-50 to 1000°C). Non-contact temperature measurements are available
at the touch of a button with the Extech 42545 infrared thermometer. The built-in laser pointer
increases target accuracy while the handy pushbuttons provide convenient, ergonomic operation.
The Extech 42545 infrared thermometer features a fixed 0.95 emissivity, which covers 90% of
surface applications.

The Extech 42545 infrared thermometer has many applications. Use your Extech 42545 infrared
thermometer to measure surface temperature of objects which are difficult to reach or unsafe
to contact and to measure hot spots in electrical panels and equipment. You can also use your
Extech 42545 infrared thermometer for in-process temperature measurements.

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.