NodOn EnOcean Temperature & Humidity sensor
The EnOcean Temperature and Humidity Sensor is wireless and
battery-free. It measures the temperature and the humidity of a room
every 100 seconds, and directly sends the information to the home
automation gateway, to know in real time the humidity level and the
temperature of a room.
View more: https://nodon.fr/en/nodon/enocean-temperature-humidity-sensor/