Product information Wireless data loggers
Atmospheric pressure
Sensor
Piezoresistive
Measuring range
300…1100 hPa
Resolution (of the instrument)
0.1 hPa
Accuracy
± 0.5 hPa (800...1100 hPa) @ T=25°C
± 1 hPa (300...1100 hPa) @ T=0...50°C
Stability
1 hPa/year
Temperature drift
±3 hPa between -20…+60 °C
Differential pressure
Sensor
range 1...4
: Piezoresistive
range 5
: Thermal mass flow sensing element
Measuring range
Depending on the model:
range 1
range 2
range 3
range 4
range 5
±2.5 hPa
±10 hPa
±100 hPa
±2000 hPa
±125 Pa
Resolution (of the instrument)
0.001 hPa
0.005 hPa
0.05 hPa
1 hPa
0.01 Pa
Accuracy
range 1...4
: ± 1% f.s.
range 5
: ± 3% of reading, ± 0.1 Pa @ 0 Pa
over the entire compensated temperature range (0…50 °C)
Connection
Tube Ø 5 mm. In the model r5 it is recommended to use tubes with at least
5 mm internal diameter.
Carbon monoxide (CO)
Sensor
Electrochemical cell
Measuring range
0 … 500 ppm
Resolution (of the instrument)
1 ppm
Accuracy
± (3 ppm + 3% of the measure)
Working temperature
-5…50
°C
Response time
T
90
< 50
s
Stability
5% of the measure/year
Sensor life
> 5 years under normal environmental conditions
Carbon dioxide (CO2) – HD35ED… models for indoor
Sensor
Non-Dispersive Infrared (NDIR)
Measuring range
0…5,000 ppm
Resolution (of the instrument)
1 ppm
Accuracy
± (50 ppm + 3% of the measure) @ 25 °C and 1013 hPa
Operating conditions
0…50 °C / 0…95%RH non-condensing / 950…1050 hPa
Response time
T
90
< 120 s (air speed = 2 m/s)
Stability
5% of the measure/5 years (with autocalibration enabled)
Non-linearity
< 1% f.s.
Carbon dioxide (CO2) – HD35EDW… models for outdoor
Sensor
Non-Dispersive Infrared (NDIR)
Measuring range
B
: 0…5,000 ppm
B2
: 0…10,000 ppm
Resolution (of the instrument)
1 ppm
Accuracy
B
: ± (50 ppm + 3% of the measure) @ 25 °C and 1013 hPa
B2
: ± (100 ppm + 5% of the measure) @ 25 °C and 1013 hPa
Operating conditions
-20…60 °C / 0…95%RH non-condensing / 850…1100 hPa
Response time
T
90
< 120 s (air speed = 2 m/s)
Stability
5% of the measure/5 years
Temperature drift
1 ppm/°C @ -20…45 °C
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