The Milesight AM308L-868M is a powerful LoRaWAN indoor environment sensor for comprehensive monitoring of indoor air quality. It precisely measures CO2 concentration, temperature, humidity, air pressure, TVOC/HCHO, light intensity, and motion via an integrated PIR sensor. The values are clearly displayed on a large, energy-saving 10,7 cm ( 4,2 inch ) E-Ink display with black-white-red indication — ideal for quick visual monitoring in offices, schools, meeting rooms, or public facilities. Wireless communication via LoRaWAN (868 MHz) enables reliable, energy-efficient data transmission over long distances (up to 15 km in open field) and seamless integration into existing smart building systems and environmental monitoring platforms such as Milesight IoT Cloud, TTN, or Helium. Thanks to its IP30 protection rating, the sensor is designed for indoor use and offers a robust, low-maintenance solution. The battery life is up to 3 years (depending on usage and transmission interval), with optional operation via USB-C power supply. Installation is simple, either wall-mounted or on a tabletop. Configuration is possible via USB-C, NFC, or the ToolBox app. The sensor supports LoRaWAN 1.0.2 / 1.0.3 and serves as a data-driven foundation for optimizing comfort, health, and energy efficiency in indoor spaces.

Technical Specifications

• Frequency range: 863–870 MHz (EU868)
• Sensors: CO2, temperature, humidity, air pressure, TVOC/HCHO, light, PIR (motion)
• Display: 10,7 cm ( 4,2 inch ) E-Ink display (black/white/red)
• CO2 measurement range: 400 – 5000 ppm
• Temperature measurement range: -20 °C to +60 °C
• Humidity measurement range: 0 – 100 % rH
• Air pressure measurement range: 300 – 1100 hPa
• Power supply: 2x 3.6 V ER14505 Li-SOCl2 batteries or USB-C
• Battery life: Up to 3 years (depending on interval and usage)
• Communication range: Up to 15 km (open field)
• Protection rating: IP30 (indoor use)
• Dimensions: 120 × 100 × 25 mm
• Weight: approx. 150 g
• Mounting: Wall mounting or tabletop placement
• Configuration: USB-C, NFC, or ToolBox app
• Compatibility: LoRaWAN 1.0.2 / 1.0.3