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Did you know that Comet exists in a US version as well?

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manufacturer of measuring instruments
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Wireless thermometer, hygrometer, Sigfox IoT

The device measures the temperature and humidity from the built-in internal sensor. It is characterized by a simple compact design with the possibility of installation directly into the measured space. The sensor can be used with a suitable sensor cap even in more demanding conditions.

The measured values are sent in an adjustable time interval (10 min to 24 h) by radio transmission in the Sigfox network to the COMET Cloud, from which the user can view them using a personal computer or mobile device.

The instrument can monitor up to 2 alarm limits of the measured variable. Exceeding these limits is indicated by sending an emergency message. COMET Cloud transmits this alarm message via e-mail to the selected user. The device is suitable for applications that tolerate the delay of information delivered by Sigfox (max. 10 min).

Highlights:

  • wireless transmission of measured values and alarm states
  • battery power with low battery indication (battery life 4 months to 7 years)
  • external power with optional accessories
  • remote setting of the device from COMET Cloud (maximum once a day)
  • IP65
  • traceable calibration certificate in accordance with EN ISO / IEC 17025 

The availability of Sigfox network in a particular location

Check your Sigfox network availability before you buy your device. COMET devices in the Sigfox network can be used anywhere in the RCZ1 zone. Learn more about Sigfox (RC) Radio Zones.

 

  • code
    W3810
  • Warranty
    3 years

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)

TEMPERATURE SENSOR

Measuring range -30 to +60 °C
Accuracy ±0.4 °C
Resolution 0.1 °C
Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) 10 minutes

HUMIDITY SENSOR

Measuring range 0 to 100 % RH
Accuracy ±1.8 % RH from 0 to 90 % at 23 °C
Resolution 0.1% RH

DEW POINT

Measuring range -60 to +60 °C
Accuracy ±1.5 °C at ambient temperature T <25 °C and RH >30 %
Resolution 0.1 °C

GENERAL TECHNICAL DATA

Operating temperature -30 to +60 °C
Channels internal temperature and humidity sensor
Message transmission interval adjustable 10 minutes, 20 minutes, 30 minutes,1 hour, 3 hours, 6 hours, 12 hours, 24 hours
Alarm message sending interval 10 minutes
Operating frequency 868 MHz
Maximum transmission power 25mW
Sigfox radiation class 0U
Radio configuration zone RCZ1 (operation is possible in Europe, Iran, Oman and South Africa)
Typical range of transmitter 50 km in the field, 3 km in the city
Power Lithium battery 3.6 V, AA size
Protection class IP65 electronics, IP40 sensors
Dimensions 126 x 89 x 40mm
Weight (including batteries) 150g
Warranty 3 years