The Dragino AQS01-L is designed to measure the surrounding environment parameters include: CO2, Temperature , Relative Air Humidity and Air pressure, and then upload to IoT server via LoRaWAN wireless protocol. AQS01-L is powered by a ER18505 4000mAh battery. The battery can last more than 2 years and is easy to change. AQS01-L supports BLE configure and wireless OTA update which make user easy to use. AQS01-L supports CO2 Alarm and Temperature Alarm* features, users can get an alarm for instant notice. AQS01-L supports Datalog feature, User can retrieve the sensor data from LoRaWAN commands.