We started developing compact controllers at the end of 2018 and will continue throughout 2019. The ACD is suitable for heating and cooling systems. It has a colour display and a built-in position sensor. The latter enables the display to always show the correct data, regardless of the mounting position of the controller. The keypad is concealed under the manual valve advancement knob, which prevents unwanted interference with the operation of the controller. The cables are made with connectors, allowing easy cable replacement in case of damage. There is also an "info" key on the lid of the regulator which, when pressed, gives the user access to the instructions for setting the regulator. With a number of mounting accessories, the regulator can be mounted on most valves on the market. A quick mounting flange for quick mounting on the valve, which is a Seltron innovation, is included as standard in the product.