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Comet U4440M - IoT Wireless Temperature, Relative Humidity, CO2 and Atmospheric Pressure Datalogger with built-in GSM Modem

0 reviews | Model: Comet U4440M


IoT Temperature, Relative Humidity, Atmospheric Pressure and CO2 MOBILE datalogger; internal sensor

  • Internal temperature, relative humidity, barometric pressure and the concentration of CO2 in the air.
  • Dewpoint temperature calculated from the internal temperature and relative humidity.
  • Temperature: (-20 to +60) °C
  • Relative humidity: (0 to 100) %RH without lasting condensation (*2)
  • Barometric pressure (absolute): 700 hPa to 1100 hPa
  • Concentration of CO2 in the air: 0 to 5000 ppm
  • Dew-point temperature: -90 to +60 °C
  • Temperature incl. dew-point temperature: 0.1 °C
  • Relative humidity: 0.1 %RH
  • Barometric pressure: 1 hPa
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Max Temperature60 C260 C260 C70 C70 C60 C260 C260 C260 C260 C70 C60 C60 C60 C60 C70 C60 C70 C60 C60 C60 C60 C60 C60 C60 C60 C260 C260 C260 C260 C60 C60 C60 C60 C260 C260 C
Min Temperature-20 C (-4 F)-90 C (-130 F)-200 C (-328 F)-30 C (-22 F)-30 C (-22 F)-20 C (-4 F)-200 C (-328 F)-200 C (-328 F)-200 C (-328 F)-200 C (-328 F)-30 C (-22 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-30 F-20 F-30 C (-22 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-200 C (-328 F)-200 C (-328 F)-200 C (-328 F)-200 C (-328 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-20 C (-4 F)-200 C (-328 F)-200 C (-328 F)
Accuracy±1.5 °C at ambient temperature T <25 °C and RH >30%±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °CTEMPERATURE SENSOR: ±0.4 °C TEMPERATURE SENSOR - EXTERNAL PROBE PT1000: ±0.2 °C (-50 to +100 °C); ±0.2 % from reading from +100 to +260 °C; ±0.4 % from reading from -90 to -50 °C ±0.4 °C±0.4 °C±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C±0.2°C; ±0.2 % of the measurement value in a range of +100 to +260 °C±0.2°C; ±0.2 % from reading from +100 to +260 °C ±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C±1.5 °C at ambient temperature T <25 °C and RH >30%±1.5 °C at ambient temperature T <25 °C and RH >30%TEMPERATURE SENSOR: ±0.4 °C HUMIDITY SENSOR: ± 1.8 % RH DEW POINT: ±1.5 °C at ambient temperature T <25 °C and RH >30 % CO2 SENSOR: ±(50ppm +3% from reading) at 25°C and 1013hPaTEMPERATURE SENSOR: ±0.4 °C TEMPERATURE SENSOR - EXTERNAL PROBE PT1000: ±0.2 °C (-50 to +100 °C); ±0.2 % from reading from +100 to +260 °C; ±0.4 % from reading from -90 to -50 °C HUMIDITY SENSOR: ± 1.8 % RH DEW POINT: ±1.5 °C at ambient temperature T <25 °C and RH >30 %TEMPERATURE SENSOR: ±0.4 °C HUMIDITY SENSOR: ± 1.8 % RH DEW POINT: ±1.5 °C at ambient temperature T <25 °C and RH >30 %TEMPERATURE SENSOR: ±0.4 °C HUMIDITY SENSOR: ± 1.8 % RH DEW POINT: ±1.5 °C at ambient temperature T <25 °C and RH >30 % ATMOSPHERIC PRESSURE SENSOR: ±1.3 hPa at 23 °C from 800 to 1100 hPa±1.5 °C at ambient temperature T <25 °C and RH >30%±10 mV±20 µAAccuracy ±20 µA±(50ppm +3% from reading) at 25°C and 1013hPa ±0.4 °C ±0.2°C; ±0.2 % of the measurement value in a range of +100 to +260 °C ±0.2°C; ±0.2 % of the measurement value in a range of +100 to +260 °C±0.2°C; ±0.2 % of the measurement value in a range of +100 to +260 °C±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °CTemperature measurement accuracy: ±0.4 °C Humidity measurement accuracy: ± 1.8 % RH Dew point measurement accuracy: ±1.5 °C at ambient temperature T <25 °C and RH >30 %Temperature/Humidity/Dew Point measurement and accuracy: according to the connected probe Digi/ETemperature measurement accuracy: ±0.2 °C (-50 to +100 °C); ±0.2 % from reading from +100 to +260 °C; ±0.4 % from reading from -90 to -50 °C Humidity measurement accuracy: ± 1.8 % RH Dew point measurement accuracy: ±1.5 °C at ambient temperature T <25 °C and RH >30 %Temperature measurement accuracy: ±0.4 °C Humidity measurement accuracy: ± 1.8 % RH Dew point measurement accuracy: ±1.5 °C at ambient temperature T <25 °C and RH >30 % CO2 measurement accuracy: ±(50ppm +3% from reading) at 25°C and 1013hPa Atmospheric pressure measurement accuracy: ±1.3 hPa at 23 °C from 800 to 1100 hPa±10 mVVoltage measurement accuracy: ±20 µACurrent measurement accuracy: ±20 µA±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C ±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C
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