The One thermostat by Atag convinces with high quality, design, ease of use and functionality. The design of the black thermostat resembles current communication products. Clearly readable numbers and clearly structured function display make handling easy and intuitive. The Thermostat shows all important facts of the heating system such as operating status, but also failures and need for maintenance. Built of aluminium and scratch-resistant plastic, the One features a long product lifetime and a high-quality look.