Extech Instruments IR250 User Manual

IR250-en-GB_V3.1 7/16 2
Introduction
Congratulations on your purchase of the Model IR250 Thermometer. This IR thermometer
measures and displays non-contact (infrared) surface temperature to a maximum of 500
o
F
(260
o
C). The built-in laser pointer increases target accuracy and the backlit LCD allows for use in
dimly lighted areas.
Safety
 Use extreme caution when the laser pointer is on
 Do not point the beam toward anyone's eye or allow
the beam to strike the eye from a reflective surface
 Do not use the laser near explosive gases or in other
potentially explosive areas
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Extech Instruments IR250 Specifications

Temperature Measurement

temperature range	-20 to 260°C (-4 to 500°F)
temperature resolution	0.1°
temperature accuracy	-20°C to -7°C (-4 to 20°F): ±4°C (7.5°F); -7°C to 260°C (20 to 500°F): ±3% of reading or ±2.5°C /5°F (whichever is greater)
emissivity	Fixed 0.95

Display

display type	Backlit LCD display with function indicators
display update rate	Less than 1 second

Operating Environment

operating temperature	0°C to 50°C (32°F to 122°F)
operating humidity	80% Relative Humidity max.

Power

power supply	9V battery
automatic power off	Meter shuts off automatically after 8 seconds

Weight and Dimensions

weight	125g (4.4 oz)
dimensions	80x31.7x137mm (3.15 x 1.25 x 5.4”)