The W7910 sensor with LoRaWAN network output measures temperature, humidity, and atmospheric pressure using integrated internal sensors and can be installed directly in the measurement environment thanks to its IP65-rated housing. LoRa devices are powered by a replaceable battery with a lifespan of up to 10 years (3 years standard). External power is also available with optional accessories. The sensor can be used with a suitable cover even in more demanding conditions.
Measured values are transmitted wirelessly at adjustable intervals (from 5 minutes to 24 hours) to COMET's cloud storage, where users can access them via a computer or mobile device. The sensors are remotely configured from the COMET cloud and can monitor up to two alarm thresholds; any exceedance is notified by an alert sent to the user. Key Features
Wireless transmission of measured values and alarm statuses
Battery-powered with a low-battery indicator (up to 10 years of battery life) and an external power supply option
Remote device configuration via COMET Cloud
IP65-rated housing
Calibration certificate with metrological traceability declared according to CSN EN ISO/IEC 17025 standards
A pre-configured gateway is available as an accessory at an additional cost. For ease of use, we offer the pre-configured LoRaWAN SP041 gateway, fully prepared for communication with COMET Cloud and our sensors. This option simplifies the configuration process and saves users time.
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
