Modern door chain locks add safety in a similar way to a screw. They enable a door to be opened to around 150 mm and still keep it firmly fastened. The passenger can check a caller's identification prior to fully opening the door.
A 'door guard' provides very good safety and also is more robust than numerous door chains. The sphere handle gets in the void in between the metal bars in the closed-door placement yet the gap in the slide bar is not wide enough to release it when the door is open.
The 'Security-chain' is concealed in the door frame and has a push button operation for fast, very easy securing. Like other chains and guards , it can just be unlocked when the door is closed.
For more info about door guard chain or any one of our solutions, please click here.
Contact us Now:
Contact: David door guarddoor guard Jian
Mob: Contact us Now 0086-139 Contact us Now 2903 7292
Email: door guard chain [email protected]