VoltageDC24V,Stroke: 300mm, 400mm, 500mm, 600mm, 700mm no-load speed: 10mm/s, open or close the window via wireless remote control When rain hits the yellow rain sensor, the window will close automatically. The application range of chain linear actuator is particularly wide, not only suitable for home use, but also for commercial use. Chain Actuator Electric Window Opener metal chain, low noise, low energy consumption, maintenance; overload protection. When the push and pull force reaches the peak, it will automatically stop Opening or closing the window actuator through a wireless remote control can help people and the elderly with limited mobility to easily open or close the window Service: If you have any questions about this product, please feel free to contact us, we will reply you within 24 hours!