AT-011 Electric Remote Control Chain Actuator w/ remote control 450mm, 250N. This window actuator features an enclosed channel built with an adjustable chain. It is constructed with a built-in receiver to allow for the operation of windows and vents from a handheld remote control. This remote control chain actuator is durably made for continual, steady performance. Built with an adjustable chain.Constructed with a built-in receiver. Durably made for continual, steady performance. Suitable for most windows or roof vents.