Upgrade your heating and cooling system with the Honeywell Home C-Wire Adapter for Wi-Fi Thermostats THP9045A1098. This universal adapter is made of durable plastic and can be mounted on walls, radiators, surfaces, cabinets, and more. With low voltage requirements and no need for batteries, this non-programmable thermostat adapter is compatible with a variety of brands and models, and can easily be installed with adhesive or flush-mounted for a sleek look. Take control of your home's temperature without worrying about compatibility or complicated programming.