Rain-Sensing Electric Chain Window Opener
A compact 24V DC chain actuator with an integrated rain sensor for automatic window closing. Engineered for skylights, smoke-vent windows and daily ventilation systems.

Smart ventilation that reacts to rain
When rain is detected, the system can close the connected window automatically, helping protect interiors while maintaining convenient electric operation by remote control, wall switch or a compatible control panel.
Automatic Rain Closing
Graphene rain-sensing panel responds quickly to rainfall and sends a closing signal.
Strong Chain Drive
Push and pull force from 300 to 800N, with a standard 400N configuration.
Flexible Stroke
Working stroke from 300 to 1000mm for different window sizes and opening angles.
Multiple Controls
Compatible with remote control, wall switch and intelligent ventilation systems.
Compact housing, practical performance
The slim aluminum-alloy body is suitable for visible installation on modern window frames. Overload protection supports reliable everyday operation.
Designed for building automation and smoke ventilation control systems.
Smooth opening and closing for residential and commercial applications.
Suitable for ambient temperatures from −15°C to +75°C.
Mounting brackets and hardware simplify project installation.
Configuration, components and dimensions
Review the window opening effect, actuator components, installation dimensions and technical parameters in one complete product reference.

Specifications
Standard specifications shown below. Stroke, force, control mode and accessories can be configured for your project.
For automated windows in many building types
FAQ
Does the window close automatically when it rains?
Yes. When connected to the supplied or compatible rain-sensing control system, rainfall triggers an automatic closing command.
Can I choose a different opening stroke?
Yes. Stroke options from 300 to 1000mm are available. The best choice depends on the window size, hinge position and required opening angle.
Can it be controlled remotely?
Yes. Remote control, wall switch and centralized control options are available depending on the selected configuration.
Is it suitable for smoke ventilation?
It can be integrated into a compatible 24V smoke-ventilation or building-control system. Please share your project requirements so we can confirm the correct configuration.
Need a configuration for your window project?
Send us your window dimensions, quantity, required stroke and control method. Our team will recommend a suitable actuator and provide a quotation.
Product specifications may be adjusted for project requirements. Final data is subject to the confirmed quotation and technical drawing.
