The R72616 has a PM2.5 sensor that detects the particle concentration in the air. It has also a temperature and humidity sensor.
It will send a report with measured values every half hour by default. This setting can be changed by configure command.
This device is LoRaWAN Class A compatible, has OTAA and operates at EU868 frequency. It is powered by 3 pieces 18650 Lithium batteries (not included).