Danfoss Climate Solutions introduced a new product line of thermostatic radiator valve operators to meet the demands for greater energy efficiency, replacing the RA2000 series of valve-mounted thermostatic operators. Aveo thermostatic radiator valve operators feature gas bellow technology and tactile temperature setting, providing a subtle click feeling for every 1 °F (0.5 °C) change in temperature. The Aveo thermostats also feature tamperproof versions to prevent vandalism. An anti-theft plug-in accessory offers additional protection for the Aveo thermostatic operator. This small plug-in makes it harder to remove the thermostat, which can only be done by using a special tool. Aveo thermostatic radiator valve operators also have built-in temperature limitation options so building managers can limit room occupants from changing the thermostat temperature.