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LoRaWAN COMFORT CO2 - Guide utilisateur / User guide version V1.1.1
48
Page
of 69
FR
1.4.4 Characteristics of integrated sensors
Characteristics
Unit
Temperature
Range
-20/+60
°C
Typical accuracy
+/- 0.2 between [0-60°C]
+/- 0.6 between [-20-0°C]
Resolution
+/- 0.015 to 25°C
Max long term precision drift <0.03
°C/year
Humidity
Range
10 - 90
% RH (relative
humidity in the
air, applicable
between [0-
60]°C)
Precision
+/- 2 to 25°C
Resolution
0.01 to 25°c
Max long term precision drift <0.25 to 25°C
%RH/An
CO2
Technology
NDIR (non-dispersive infrared)
Precision range
400 - 5 000
ppm
Precision*
+/- (30 + 3%)
ppm
Resolution
1
ppm
Pressure stability*
+/- 1.6
%/kPa
* Accuracy is fulfilled by > 90% of the sensors after calibration. The indicated accuracy is
conserved only if the automatic calibration is activated or if the manual calibration is done
regularly. For proper function of the automatic calibration algorithm, the sensor has to be
exposed to air with CO2 concentrations <400 ppm regularly, considered as “fresh air”(please,
refer to the dedicated calibration section).
