The Compact RAS-C2 is equally suited to both the domestic and contract market and comes complete with the revolutionary flow selectable revolver valve body. The stylish sensor is packaged together with the innovative flow selectable RA-FS bi-directional valve body which can be mounted either vertically or horizontally in flow or return. If water hammer is experienced a patented flow selection device within the valve can be turned to reverse the water direction inside the valve without the need to drain down the system, A quick and easy solution to an otherwise expensive problem. The RAS-C2 sensor, based upon the tried and tested liquid sensor actuator, is Compact and provides highly accurate temperature control. Sensor mounting requires no tools, simply press the sensor on the valve body and hand tighten a clamping ring to secure. The sensor incorporates a frost protection setting and a positive off feature, useful if radiators need tot be removed for decoration. RAS-C2 sensors are compatible with RA-FS flow selectable bi-directional valves, RA-FN, RA-N and RA-G valve bodies.