Keep an eye on temperature and humidity
Winter, when the outside temperature is freezing, is exactly the time when you'd prefer to keep your windows closed to keep the heat inside the house. However, insufficiently frequent ventilation can cause mould to develop. With the Homematic IP temperature and humidity sensor for outdoor use, you can minimise this risk the smart way. The humidity indoors and outdoors is permanently compared in combination with a Homematic IP wall thermostat with humidity detection. You then receive a ventilation recommendation in your app when needed and only need to ventilate when it is really necessary.