Stainless Steel Windproof Window Limiter & Child Safety Lock

Keep your home safer and better ventilated with this Stainless Steel Windproof Window Limiter. Designed for aluminum alloy windows and greenhouse ventilation panels, this robust window support brace lets you control how wide your window opens — up to 120° — while keeping little ones safe from accidentally opening it further.

Key Features

• Heavy-Duty Stainless Steel Construction: Thickened, rust-resistant material ensures long-lasting durability and high strength for everyday use.
• Windproof Brace: Built to withstand strong gusts, this stopper holds your window firmly in position without risk of breaking.
• Adjustable Angle Control: Depending on your installation position, you can set the window to open up to approximately 120°, giving you flexible ventilation options.
• Children Safety Lock: Integrated security lock function prevents young children from opening the window further — a must-have for family homes and multi-story buildings.
• Easy Installation: Simple to fit on most standard aluminum alloy window frames and greenhouse ventilation windows — no specialist tools required.
• Compact Size: Measures 182 × 34 mm, making it unobtrusive while still providing reliable support.
• Versatile Use: Ideal for residential windows, greenhouses, commercial buildings, and anywhere controlled ventilation and child safety are a priority.

Product Specifications

• Material: Stainless Steel
• Size: 182 × 34 mm
• Max Opening Angle: ~120°
• Compatible With: Aluminum alloy windows, greenhouse ventilation windows
• Country of Origin: Made in China

Package Contents

• 1 × Window Door Locator / Safety Limiter

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For more guidance on child safety in the home, visit the U.S. Consumer Product Safety Commission – Home Safety resource center.

Learn more: Latch

Frequently Asked Questions

Q: What types of windows is this stainless steel window limiter compatible with?

A: This window limiter is primarily designed for aluminum alloy windows and greenhouse ventilation windows. Its compact size (182 × 34 mm) makes it suitable for most standard window frames in residential and commercial settings.

Q: How does the children safety lock function work?

A: The integrated security lock mechanism holds the window brace firmly in place once set, preventing young children from pushing the window open beyond the set angle. This adds an important layer of security, particularly for windows in upper-floor rooms.

Q: How wide can the window be opened with this limiter installed?

A: Depending on where you position the limiter during installation, it allows the window to open up to approximately 120°, giving you excellent ventilation control while maintaining safety.

Q: Is this window support easy to install?

A: Yes — the window limiter is designed for straightforward installation without specialist tools. Simply fix it to your window frame at the desired position, and the brace will control the maximum opening angle from that point on.