Return item. Functional customer returns may show cosmetic defects, imperfections, or light signs of use, but they have no damage. Non-essential accessories may be missing, but the item is still functional. They may not have their original packaging or no packaging at all. They have not been used for more than 14 days (the time needed to send them back to the supplier). We provide a 1-month warranty on all won lots. Won lots are shipped within 7 days after payment. Return shipping costs are at your own expense.

About this item Power supply: 4 x 1.5 V AA batteries. Installation: wall mounting or cover plate for the 503 flush-mount box The wireless chrono-thermostat can be operated manually, with the Google Home voice assistant, or via the Clima WiFi Vemer app The device management app is free to download and is available for both Android and iOS. Temperature control guaranteed even in the event of a temporary absence of the internet connection Can be set for both heating and air conditioning, enabling system control 365 days a year The energy-saving function makes it possible to set the frequency of cloud connections. Fewer connections mean greater battery savings In the router settings, the 2.4 GHz frequency band must be activated. The router security settings must be set to WPA/WPA2 or WPA2.