Dragino CO2-LE, LoRaWAN CO2, temperature, humidity and barometric pressure sensor with E-Ink display, EU868

The Dragino CO2-LE is an indoor LoRaWAN air quality sensor that measures CO2 concentration, temperature, relative humidity, and atmospheric pressure. The measurements are available on the integrated 2.7" E-Ink display directly on site, supplemented by a trend bar showing the last 25 CO2 measurements and an icon for assessing air quality. A Senseair Sunrise NDIR sensor with pressure compensation is used as the CO2 sensor, and the power supply is provided by two replaceable ER18505 batteries with a combined capacity of 8000 mAh.

Main features:

• 2.7" E-Ink display showing CO2, temperature, humidity, atmospheric pressure, CO2 trend, signal strength, and battery level
• LoRaWAN 1.0.3, Class A, OTAA, freely configurable transmission interval (default: 20 minutes)
• Configuration via Bluetooth or LoRaWAN downlink, firmware updates via OTA
• CO2 and temperature alarms with adjustable thresholds, as well as data logging: If no network is available, the measurements are stored locally and transmitted later
• CO2 calibration via button press in fresh air, automatic baseline correction (ABC) can be enabled

Specifications:

• CO2: NDIR (Senseair Sunrise), 400 to 10,000 ppm, accuracy ±(50 ppm + 3% of the measured value), with pressure compensation
• Temperature: Sensirion SHT41, -40 to +125 °C, accuracy ±0.2 °C
• Relative humidity: Sensirion SHT41, 0 to 99.9% RH, accuracy ±1.8% RH
• Atmospheric pressure: 300 to 1100 hPa, accuracy ±0.3 hPa
• Operating conditions for CO2 measurement: 0 to 50 °C, 0 to 85% RH, non-condensing
• Display: 2.7" E-Ink
• Radio: LoRaWAN 1.0.3 Class A, EU868, max. +22 dBm, sensitivity down to −139 dBm
• Battery: 2 x ER18505 Li-SOCl2 (4000 mAh each), non-rechargeable, replaceable
• Power consumption: 9 µA in sleep mode, 125 mA when transmitting at 20 dBm
• Battery life: according to Dragino, 2 to 8 years with a 20-minute transmission interval, depending on radio conditions. Enabled alarms significantly reduce the battery life.
• Scope of delivery: 1 x CO2-LE

Applications:

• CO2 monitoring in classrooms, lecture halls, and daycare centers, with air quality displayed directly in the room
• Offices, meeting rooms, and coworking spaces
• Demand-controlled ventilation in building automation
• Medical practices, waiting areas, restaurants, and event venues

Note: The CO2 sensor must be calibrated before first use, as well as after a battery replacement or factory reset. Calibration is performed by pressing the button in fresh air.

Documents:

• Manual