ERS is a LoRaWAN sensor for high accuracy indoor climate measurements and is a great sensor for smart buildings, dynamic workspaces or climate control. The ERS is equipped with internal sensors for measuring temperature, humidity, light, and motion (PIR sensor). The sensor light indicates when the temperature reaches a certain threshold. The light feature can be configured with color of the light, frequency, and light intensity. All Elsys sensors are equipped with NFC (Near Field Communication) for easy configuration with a smart phone. All settings, such as data rate, encryption keys, triggers and activation can be changed and managed in the Elsys configuration app “Sensor settings”. The battery life is estimated to be up to 10 years, depending on sample interval, transmit interval, data rate, and environmental factors. The sensor is powered by two 3,6V AA lithium battery (sold separately).