|  | HDH | Carbon dioxide measurement Range 0…2000 ppm
 Accuracy (25 °C) typ. ±40 ppm +3 %
 Temperature measurement
 Range 0...50 °C
 Accuracy (25 °C) ±0.5 °C
 Humidity measurement (RH models)
 Range 0…100 %rH
 Accuracy (25 °C) ±2 %rH
 Outputs 0…10 V, < 2 mA
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				|  | LCTR 903(CO2) | Gas transmitter with infrared sensors Test range : 0...1 Vol % CO2
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				|  | HDK | Carbon dioxide measurement range 0…2000 ppm
 accuracy (25 °C) typ. ±40 ppm +3 %
 Temperature measurement
 range 0...50 °C
 accuracy (25 °C) ±0.5 °C
 Humidity measurement (RH models)
 range 0…100 %rH
 accuracy (25 °C) ±2 %rH
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				|  | GMT220 series | 측정범위 - GMT221 : 0…2%, 0…3%, 0…5%, 0…10%, 0…20%
 - GMT222 : 0…2000ppm, 0…3000ppm,
 0…5000ppm, 0…7000ppm, 0…10,000ppm
 정확도
 - GMT221, GMT222 : ±1.5% of range
 +2% reading
 출력
 - Current output  0…20mA, 4…20mA
 - Voltage output  0…10V
 전원
 -?nominal 24VAC/DC
 
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				|  | CDT2000 | 측정범위 : CO2_400~2000ppm / Temperature_0~50℃ / Relative humidity_0~90% 정확도 : CO2_±40ppm + 2% reading / Temperature_<0.5 ºC/ Relative humidity_±4 %
 출력 : 0?10 V / 4?20 mA
 
 실용적인 산업용 CO2 온습도센서(저가형)
 HVAC(공조시스템)의 구축을 위해 설계
 새로운 방식의 터치스크린 디스플레이 방식
 
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