Versatile electric chain window opener designed for skylights, roof vents, and greenhouses. It is compatible with casement, sliding, and hung windows, making it suitable for homes, conservatories, and loft spaces. Comes with a remote and wall switch for effortless control from anywhere, ideal for hardtoreach windows and seamless integration into smarthome setups. Built for durability with a carbon fiber metal chain and an aluminum alloy housing. Rated for over 10,000 open/close cycles and compatible with optional wind and rain sensors. Autostop function halts the motor when peak force is detected to protect the window and system. Autolock engages when closed to improve wind and rain resistance. Use scenarios Ventilate a greenhouse or conservatory to regulate temperature and humidity while maintaining convenient control. Open or close skylights in a loft or attic to manage heat buildup and improve airflow. Integrate with smarthome setups or operate remotely for hardtoreach windows, ensuring comfortable indoor conditions without manual effort.