To release the restrictor, simply press the two buttons on the back plate and slide the arm out of position. This will allow the window to open fully as normal. To re-engage the restrictor, press the two buttons again while sliding the arm back into place.
eBay
Adjustable Window limiter latch casement position Locator Wind Brace Sash door Blocking Latches stopper safety child Protecter
Aliexpress UK
Window Restrictor Hook -- This Essential Child Safety Device Is Designed To Limit Opening of a Window in a range Prevent Children or Pets from Falling or Running Out, Ensure Their Safety. 1/2pcWindow Restrictor with Screws.
eBay
Kids Window Sill Desk Edge Guard Strip Thickend Baby Safety Wall Corner Protector Self Adhesive 2m Anti Collision Cushion
Aliexpress UK
In the locking design, abandon the traditional key and password way, do not worry about dropping the key and forget the password, have a better usage experience. The gap size from 3.5 cm to 19 cm, it allows way more air flow than having the upvc window on the latch.
eBay
Plastic+Stainless Steel+Zinc Alloy UPVC Child Safe Security Window Door Sash Lock Safety Lever Handle Sweep Latch Dropship
Aliexpress UK
Strong child safety catch lock. The WP Flexi Concealed Window Restrictor is a unique restrictor that is designed to fit a wide range of different windows. In addition, it has a strong child safety catch lock, helping to keep younger children safe near the windows.
eBay
1Pcs Child Safety Lock - Multi-functional Cabinet Locks No Drill Needed for Refrigerator Lock Drawer& Closet Window Lock Baby
Aliexpress UK
Easy to Install: Our window restrictor can be installed with only a screwdriver. It is convenient for you to quickly fix the child lock stopper to the window. 1Pair/2pcs Window Restrictor with Screws.
eBay
Elecpow Refrigerator Door Alarm 90dB Loud 60 Seconds Time Delay Ultra-Slim Fridge Alarm Window Open Alarm Home kid Safety Alarm
Aliexpress UK
Window Safety Lock Child Safety Pet Safety Window Restrictor No Punching Description: Reinforced aluminum alloy bolt with machine-sealed joints blocks external prying, enabling safe ventilation. Exclusively designed for outward-opening casement windows;Exclusions: Not compatible with inward-opening or sliding window systems. Specification: Material: Aluminum Alloy Color: As shown Size: As shown Package List: 1 x Lock Note: Please allow slightly errors due to manual measurement and different monitors.
eBay
Baby Safety Wall Corner Protector Kids Anti Collision Cushion 2m Desk Edge Guard Strip Thickend Window Sill Foam Bumper
Aliexpress UK
Window Restrictor - Suitable for Top Hung or Side Hung Windows. This window restrictor is ideal for child safety and security. It is sprung loaded with a releasable arm and is concealed when the window is closed.
eBay
1/10pcs Child Safety Strap Locks No Drilling Cabinet Locks Adhesive Versatile for Cupboards Door Window Refrigerator
Aliexpress UK
2 Pair of White Window Door Cable Restrictor Child Baby Safety Security Lock UK. Baby Safety Lock: 2 cable ventilator Designed for child safety, limiting window opening distance, safe ventilation. Ideal for Window Door Security.
eBay
Baby Safety Password Lock Multi-Function Refrigerator Cabinet Drawer Locks Home Security Protection Window Limiter for Children
Aliexpress UK