COMET W7910 – LoRaWAN Sensor for Temperature, Humidity, and Air Pressure

COMET W7910 – Battery-powered LoRaWAN sensor for temperature –30 to +60 °C, humidity 0–100 %RH, air pressure, dew point 

The COMET W7910 is a compact, battery-powered 3-in-1 LoRaWAN sensor with integrated sensors for temperature, relative humidity, and barometric pressure – the perfect IoT solution for wireless, energy-efficient remote climate monitoring in warehouses, cold rooms, server rooms, offices, technical centers, greenhouses, museums, or production halls. With IP65 protection and up to 10 years of battery life (depending on interval), it is ideal for long-term applications in harsh environments – without power cables or network wiring.

The internal temperature sensor measures from –30 to +60 °C (±0.4 °C), the humidity sensor from 0 to 100 %RH (±1.8 %RH in the range 0–90 % at 23 °C), and the barometric pressure sensor provides precise readings. The dew point is calculated automatically. All values are transmitted wirelessly via LoRaWAN (Europe 863–870 MHz) at adjustable intervals (5 min to 24 h) to the COMET Cloud, where graphs, data exports, alarms, and remote configuration via app or browser are available. Two configurable alarm limits per parameter with push notifications protect against critical values (e.g., excessive humidity in server rooms or low pressure).

The IP65 enclosure protects against dust and water jets – ideal for indoor and outdoor applications. The integrated (replaceable) battery lasts 3–10 years depending on the transmission interval. No wiring required – easy installation and commissioning. The COMET Cloud is included free for 1 year (then 1 Credit/year) including data storage and alarm functions. An optional preconfigured LoRaWAN gateway is available – ready for immediate cloud connection.

Why COMET W7910 is the professional LoRaWAN climate sensor:

• 3-in-1: Temperature + Humidity + Air pressure – dew point automatically calculated
• High accuracy – Temp. ±0.4 °C | Humidity ±1.8 %RH | Pressure precise
• LoRaWAN radio – range up to 15 km (open field) / 2 km (urban area)
• Battery life up to 10 years – adjustable intervals
• IP65 protection – for indoor & outdoor use
• COMET Cloud included – 1 year free, remote configuration
• 2 alarm limits per parameter – push notification on exceedance
• Traceable calibration certificate – EN ISO/IEC 17025
• No wiring – easy installation & start-up

Technical data W7910:

• Temperature range: –30 to +60 °C (±0.4 °C)
• Humidity: 0 to 100 %RH (±1.8 %RH from 0–90 % at 23 °C)
• Dew point: –60 to +60 °C (±1.5 °C at T<25 °C and RH>30 %)
• Air pressure: integrated (accuracy & range see extended specs)
• Temperature response time: t90 = 10 minutes (temperature step 20 °C, air flow 1 m/s)
• Transmission interval: 5 min to 24 h (adjustable)
• Frequency: Europe 863–870 MHz
• Transmit power: max. 25 mW (14 dBm)
• Range: up to 15 km (open field) / 2 km (urban, buildings)
• Protection: IP65
• Operating temperature: –30 to +60 °C
• Battery: replaceable, 3–10 years lifetime
• Warranty: 3 years

Perfect for:

• Room climate & warehouse monitoring
• Data centers & server rooms
• Greenhouses & agriculture
• Museums & archives (art & documents)
• Pharma & food storage
• Remote monitoring without power or network cables
• Critical climate alarms (humidity, temperature, pressure)
• IoT & smart building applications

Installation & commissioning – done in minutes

Mount the sensor, insert the battery, ensure the LoRaWAN network (gateway) is within range – that’s it! Activate and configure via COMET Cloud – no wiring, no programming required. All data (T, RH, pressure, dew point) are automatically transmitted to the cloud.

Summary:

• The W7910 sensor with LoRaWAN network output measures temperature, humidity, and air pressure using integrated sensors and can be installed directly in the measurement environment thanks to its IP65-certified enclosure.
• LoRa devices operate with a replaceable battery with a lifetime of up to 10 years (standard 3 years).
• Measured values are transmitted wirelessly to the COMET Cloud at adjustable intervals (from 5 minutes to 24 hours) and can be accessed by users via computer or mobile device.
• The sensors allow remote configuration via the COMET Cloud and can monitor up to two alarm thresholds.
• If a threshold is exceeded, a notification is sent to the user.

Scope of delivery:

• W7910
• User manual
• Traceable calibration certificate
• 1× 3.6 V lithium battery
• COMET Cloud for 1 year