The Google Nest Learning Thermostat 3rd Generation is a smart thermostat that is powered by a 3V button cell battery. It features a stainless steel material and a circular shape, making it both durable and stylish. The thermostat is wireless and can be controlled through the Nest app, Google Home/Assistant, or by using the display base included in the package. With its 7-day programmable schedule, frost protection properties, and compatibility with various heating systems, this thermostat is designed to provide efficient and convenient climate control for your home. Heat-link also provided - both in perfect condition and working order - price is for one with two available
eBay