The Laird Connectivity's temperature and humidity sensor with RF sensor of 868MHz frequency with Bluetooth v4.2 and LoRaWAN and has a 2 x AA - replaceable battery. Modulation or protocol Bluetooth v4.2, LoRaWAN
Frequency 868MHz
Temperature ranges -10° to +85°C (+/-0.4°C),-40° to +125°C (+/-1.1°C)