["DRAGINO LHT52-EU868 Temperature & Humidity Sensor The Dragino LHT52 Temperature & Humidity Sensor is a Long Range LoRaWAN Sensor. Is verfügt über einen built-in temperature & humidity sensor as well as a USB Type-C sensor connection for external sensors such as e.g. connect an external temperature sensor. The LHT52 monitors the ambient temperature and humidity and sends these values ​​via the LoRaWAN protocol. Er kann in vielen professionalen bereinen wie bspw. such as Smart Cities, Gebäudeautomation, Lebenmittelbereich usw. used. The LHT52 is operated with 2 x AAA batteries and can have up to a battery lifetime of several years. Sollten die Batterien leer sein können diese einfach getauscht werden. Der LHT52 mit dem LoRaWAN v1.0.3 Protocol compatible und funktioniert mit einem Standard LoRaWAN Gateway. The sensor has a data log function to ensure that the sensor data is not lost. The sensor data for each Uplink are saved and can be loaded from a LoRaWAN server via a Downlink command. Should the temperature rise above a set value, the LHT52 Alarm Uplink Packet can be sent in a short time interval", "Wall mountable", "LoRaWAN Class A protocol", "Frequency bands: CN470/EU433/KR920/US915/EU868/AS923/AU915", "AT commands for changing parameters", "Remote configuration parameters via LoRaWAN downlink", "Firmware upgrade possible via program port", "2 x AAA LR03 1.5v batteries (not included)", "Built-in temperature and humidity sensor", "Optional external sensors", "Three-color LED for status display", "Data logging and reception via LoRaWAN", "Temperature alarm function", "Operating temperature: -20 to 50°C", "Protection class: IP52"]