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IoT wireless thermometer, hygrometer, barometer, LoRaWAN network

The W7910 sensor with LoRaWAN network output measures the temperature, humidity and atmospheric pressure from the built-in internal sensors and can be installed directly in the measured environment thanks to its IP65-rated enclosure. LoRa devices are powered by a replaceable battery with a lifespan of up to 10 years (3 years standard). External power with optional accessories is also available. The sensor can be used with a suitable sensor cap even in more demanding conditions.

Measured values are transmitted wirelessly at adjustable intervals (from 5 minutes to 24 hours) to the COMET Cloud storage, where they are accessible to users via computer or mobile device. The sensors offer remote configuration from the COMET Cloud and feature the capability to monitor up to two alarm thresholds, with any exceedance signaled by an alert sent to the user.

Key Features

  • Wireless transmission of measured values and alarm states
  • Battery-powered with low battery indicator (battery life up to 10 years) and external power option
  • Remote device configuration via COMET Cloud
  • IP65-rated enclosure
  • Calibration certificate with declared metrological traceability of standards according to CSN EN ISO/IEC 17025
  • Preconfigured Gateway available as an accessory at extra cost. For ease of use, we offer the pre-configured LoRaWAN Gateway SP041, which is fully ready for communication with COMET Cloud and our sensors. This option simplifies the setup process and saves time for users

  • code
    W7910
  • Warranty
    3 years
  • On request

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)
Atmospheric pressure

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

ATMOSPHERIC PRESSURE SENSOR SENSOR

Measuring range 600 to 1100 hPa
Accuracy ±1.3 hPa at 23 °C from 800 to 1100 hPa
Resolution 0.1 hPa

GENERAL TECHNICAL DATA

Operating temperature -30 to +60 °C
Channels internal sensor of temperature, humidity sensor and atmospheric pressure
Message transmission interval adjustable 5-10-15-20-30 minutes, 1-2-3-4-6-8-12-24 hours
Operating frequency Europe 863-870 MHz
Maximum transmission power 25 mW (14 dBm)
Typical range of transmitter 15 km in the field, 2 km in the city (sensor in building)
Antenna internal, gain 2,15 dBi
Maximum receiver sensitivity -136 dBm @BW=125 kHz, SF=12
Power Lithium battery 3.6 V, AA size
Protection class IP65
Dimensions 126 x 89 x 40mm
Weight (including batteries) 150g
Warranty 3 years

Countries using the LoRaWAN EU 868 frequency plan

Europe:

  • Albania, Andorra, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Montenegro, Netherlands, North Macedonia, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom (UK), VaticanCity (HolySee)

Africa:

  • Angola, Botswana, Democratic Republic of the Congo, Eswatini (formerly Swaziland), Lesotho, Madagascar, Malawi, Mauritius, Mozambique, Namibia, Seychelles, South Africa, Tanzania, Zambia, Zimbabwe

Asia:

  • Bahrain, Philippines, Saudi Arabia, United Arab Emirates (UAE)

 

 

Optional accessories and download

Lithium battery 3,6V/AA

Lithium battery 3,6V/AA

code A4203
Price 120.00 AED
In stock 12 pcs
Lithium battery 3,6V/C

Lithium battery 3,6V/C

code A4206
Price 150.00 AED
In stock on request
Adapter for external supply of IoT sensor with radio output to Sigfox network

Adapter for external supply of IoT sensor with radio output to Sigfox network

code SP014
Price 190.00 AED
In stock on request
Holder for 3.6 V lithium battery

Holder for 3.6 V lithium battery

code SP015
Price 300.00 AED
In stock 15 pcs
Holder for 3.6 V lithium battery with magnets

Holder for 3.6 V lithium battery with magnets

code SP015M
Price 340.00 AED
In stock 4 pcs

Accredited temperature and relative humidity calibration

Accredited temperature and relative humidity calibration

code SLU003
Price 370.00 AED
In stock on request
Accredited atmospheric pressure calibration

Accredited atmospheric pressure calibration

code SLU006
Price 370.00 AED
In stock on request

LoraWAN Gateway

LoraWAN Gateway

code SP041
Price On request
In stock 7 pcs

Holder for Sigfox sensors

Holder for Sigfox sensors

code SP017
Price On request
In stock 2 pcs
Holder for mounting the COMET Transmitter on magnetic surfaces

Holder for mounting the COMET Transmitter on magnetic surfaces

code SP102
Price 80.00 AED
In stock 16 pcs

COMET Cloud

COMET Cloud

code cloud
Price On request
In stock yes
COMET Cloud Lite for Android & iOS

COMET Cloud Lite for Android & iOS

code cloud_app
Price On request
In stock yes

COMETEO Professional Thermometer Screen for Weather Station Sensor

COMETEO Professional Thermometer Screen for Weather Station Sensor

code F8000
Price 1 410.00 AED
In stock on request

Software

download-icon Comet Vision Software (2.3.8935.24346 dbapi 21.1)
16.56 MB
download-icon Comet Database One Click Installer (21.1-V)
487.31 MB
download-icon Conversions - application for recalculation of values
694.50 KB
download-icon COMET Cloud Lite - Android (Google Play)
download-icon COMET Cloud Lite - iOS (App Store)

Others

download-icon Terms and Conditions COMET System s.r.o.
133.12 KB

Catalogs

download-icon CATALOG - IoT Sensors powered by LoRa
2.36 MB
download-icon Catalogue Sheets - COMET LoRa Sensors
2.70 MB

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