["The Milesight AM308-868M is a high-precision indoor climate and air quality sensor that records various environmental parameters such as CO2, temperature, humidity, particulate matter (PM2.5), TVOC and more in real time. The device transmits the measured values ​​wirelessly over long distances using LoRaWAN radio technology. The integrated E-Ink display clearly shows the current values. The AM308 is ideal for schools, offices, classrooms, hospitals and public buildings to improve indoor climate and meet legal air quality requirements. The AM308-868M is ideal for applications in classrooms, meeting rooms, hospitals, open-plan offices, libraries and other indoor public areas. The sensor helps to optimize the indoor climate, meet legal requirements (e.g. CO2 limits) and sustainably increase the well-being of room users", "Accurate measurement of CO2, temperature, humidity, PM2.5, TVOC, light, PIR motion and barometric pressure", "Integrated E-Ink display for local display of all environmental parameters", "LoRaWAN communication (868 MHz) for energy-efficient and wireless data transmission", "Individually configurable threshold values ​​for warning messages for critical air values", "Modern, compact housing with wall mounting option", "Low power consumption thanks to energy-optimized sensor cycles", "Frequency range: 863-870 MHz (EU868)", "Measurement parameters: CO2, temperature, relative humidity, PM2.5, TVOC, light intensity, barometric pressure, movement (PIR)", "CO2 measuring range: 400 - 5000 ppm", "Temperature range: -10°C to +50°C", "Temperature accuracy: ±0.5°C", "Humidity range: 0-100% RH", "Humidity Accuracy: ±3% RH", "Power supply: USB-C (5V) or PoE adapter (optional)", "Protection class: IP30 (for indoor areas)", "Dimensions: 94 × 94 × 28mm", "Weight: approx. 150g", "LoRaWAN version: 1.0.2 / 1.0.3 compatible"]