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Measurement parameter(s) Carbon dioxide
Temperature
Humidity
Measurement range 0 ... 2000 ppm CO2
-5 ... +55 °C (+23 ... +131°F) T
0 ... 95% RH
Measurement accuracy at +20 … +30 °C (+ 68 … + 86 °F) ± (30 ppm + 2 % of reading) CO2
at +20 ... +30 °C (+68 ... +86 °F) ±0.5 °C (± 0.9 °F) T
Temperature range +10 ... +40 °C (+50 ... +104 °F) 0 ... 60 %RH ±2.5 %RH
Operating temperature -5 ... +55 °C (+23 ... +131 °F)
Operating voltage 18 … 35 VDC, 24 VAC ± 20% 50/60 Hz
Analog outputs 0 ... 5/10 V, 2 and 3 channel models available
Housing classification IP30