GAS DNA IR-21 Non-Contact Fixed Infrared Thermometer

IR-21 non-contact infrared thermometer measures the infrared wavelength emitted from the target spot and converts it to standard current signal output (4~20mA) or RS-485 communication signal output. It can measure from 0 ℃ to maximum 400℃ in the distance of 12:1 D:S(Distance to Spot).

[ Applications ] Plastics, Fluids, Rubber, Coated components, Asphalt, Wood, Paper, Ceramics, Textiles, Glass, Food etc.

[ Specification ]

Measurement Range 0~400℃
Device Thermopile
Accuracy ±1% / full scale
Repeatability ±1% of reading
Field of View(D:S) 12:1
Optical spectrum wave 8~14㎛
Responsive Time 500msec or below
Emissive rate 0.95
Analog Output 4~20mA, 1~5V(option)
Communication output signal RS-485 communication signal
Power DC 12~24V(Max 50mA)
Ambient temperature(no water cooling) 0~70℃
Temperature Resolution 0.1℃
Warm up Period 1 to 2 minutes
Operating Relative Humidity 5~90%
Operating Ambient Temperature -30~85℃
Waterproof IP65,NEMA 4
Dimensions Ø36 ×110.5(L)
Signal Cable 4 wire shield type
Casing material Aluminum Alloy
Weight 210g
Cable length 3m(standard), other(option)
[ Code Number IR-21-□-□-□ ]
Model Description
Code A Temperature Range
1 0~200℃
2 0~400℃
3 -20~400℃
Z Other
Code B Output
M DC 0~20mA
N DC 4~20mA
V Voltage Output(1~5V)
Z Other
Code C Cable Length
1 3M
Z Other
[Optical Field of View (D:S 12:1)]


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