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Specifications 

 

 

Temperature 
range 

-20°C~400°C (-4°F~752°F) 

Accuracy 
Ambient 
temperature 
21°C~25°C 
(70°F~77°F) 

>0°C:  ±2.0°C  or  ±2%  of  reading,  whichever  is 
greater 
≤0°C: ±(2.0°C+0.1°C/°C) 
>32°F:  ±4.0°F  or  ±2%  of  reading,  whichever  is 
greater 
≤32°F: ±(4.0°F+0.1°F/°F) 

Temperature 
coefficient 

±0.1°C/°C or ±0.1%/°C, whichever is greater 
(±0.1°F/°F or ±0.1%/°F, whichever is greater) 

D:S ratio 

10:1 (calculated at 90% energy) 

Emissivity  

0.95 

Response time 

500ms  

Spectral 
response 

5.5um~14um 

Resolution 

0.1°C (0.1°F) 

Repeatability 

1°C or 1.0%, whichever is greater 
(2°F or 1.0%, whichever is greater) 

Laser 

Single laser, wavelength 630nm~670nm 
Output power < 1mW, class 2 laser 

Battery type 

AAA * 2 | 1.5V 

Battery life 

≥20H (continuous operation when laser backlight is 
turned on) 

Product size 

135mm*94mm*36mm 

Product weight 

About 148g (including batteries) 

Operating 
temperature 

0°C~50°C (32°F~104°F) 

Storage 
temperature 

-20°C~60°C (-4°F~140°F) 

Operating 
humidity 

<RH90% (non-condensing) 

Drop test 

1m 

Summary of Contents for IRT225

Page 1: ...ations on your purchase of the IRT225 10 1 infrared thermometer The IRT225 can quickly and accurately determine the surface temperature by measuring the infrared energy radiated from the target surfac...

Page 2: ...re using the thermometer Inspect the case before using the thermometer Do not use the thermometer if it appears damaged Look for cracks or missing plastic Please refer to the emissivity information fo...

Page 3: ...Description METER DESCRIPTION 1 Laser 2 Infrared sensor 3 Trigger 4 Battery cover 5 LCD 6 C F switching button 7 Battery compartment LCD DESCRIPTION 1 Function Indicator...

Page 4: ...t according to the distance to spot size ratio D S and field of view Hold After the trigger is released the last measured value and the HOLD icon will remain on the LCD display If there is no operatio...

Page 5: ...t diameter The smaller the target is the closer the test distance should be please refer to D S for the spot diameter at different distances To obtain the best measurement result it is recommended tha...

Page 6: ...red value is less than the minimum range Stop measuring Err appears when booting Exceeding the minimum or maximum operating ambient temperature Place the thermometer in a 0 C 50 C 32 F 122 F environme...

Page 7: ...the instructions for field of view D S etc Maintenance Cleaning and storage 1 The meter should be wiped with a damp cloth and mild detergent when necessary Do not use solvents or abrasives 2 Store th...

Page 8: ...d at 90 energy Emissivity 0 95 Response time 500ms Spectral response 5 5um 14um Resolution 0 1 C 0 1 F Repeatability 1 C or 1 0 whichever is greater 2 F or 1 0 whichever is greater Laser Single laser...

Page 9: ...ship and material for a period of 1 one year from the date of purchase This warranty does not apply to any of our products which have been repaired or altered by unauthorized persons in any way or pur...

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