Tuya Smart DC24V Automatic Chain Window Opener — WiFi/App & Switch Control, Optional Rain Sensor

DC24V Tuya smart chain window opener with switch, phone app and WiFi control; optional rain sensor available. The drive uses a unidirectionally bending chain that extends to open the window and retracts back into the opener when the window is closed. Chain construction is double-layered for greater durability and reduced risk of breakage. Unit includes an overload protector and is rated for 20000times of open/close cycles. Engineered for strong performance: locking force reaches 2000N and push/pull force is 450N.