9630-3523 Coleman MACH Bluetooth Thermostat Heat Pump Multiple 

Bluetooth Thermostat Heat Pump Multiple air conditioners and furnaces with individual Bluetooth controlled wall thermostats can be operated by one smart device - all the conveniences of multi-zone controls. Pair up to 3 Thermostats to a single smart device and connect up to 4 smart devices For iOS and Android devices Backlit, easy to read LCD display 12 VDC, Energy Efficient and FCC Certified