Boasting phenomenal strength and security above and beyond that of a traditional door chain, these concealed mortice door chains from the popular security manufacturer ERA offer a unique but unquestionably well thought out design, whereby the housing barrel is actually morticed deep into the door stile (over 90mm into the door), and then the holding plate on the frame is securely mounted around the frame. This level of morticing and mounting of the barrel and keep offers far superior strength against shunting than that of a typical surface-fixed setup simply screwed onto the door.
Another great benefit of these is that they look smart and tidy on the frame - with no chain rattling around scratching or damaging the door or frame, and activating / deactivating the catch on the frame could not be simpler.
The door chain is quick and easy to lock and unlock, as it is operated by a simple press of a button. A colour coded indicator on the device shows red when the chain is engaged, and black when the chain is disengaged. The chain, once engaged, can only be released when the door is closed, preventing the chain being unlocked from outside when the door is slightly ajar. The push button operation makes it easy for the elderly to operate. This is a perfect product for those who wish to speak to visitors prior to allowing them access to their home.
This product is suitable for wooden doors. It comes in an electro brass finish and is supplied with fixing screws. Full details on fitting and operation can be found in the Installation instructions.