On 22/11/2019 10:33, alan_m wrote:

It might be simpler to fit a door lock that can be operated either by
a key or by a keypad, such as some of those shown he

https://www.thearchitectsguide.com/a...ess-door-locks

The one recommended as the top pick can have up to 30 different key
codes set. That would, for example, allow you to give different carers
their own code, which could be deleted if the carers change.


Having just had a quick look how would you easily retrofit these to a
composite DG door that has a Eurolock with the handle just above the
lock which controls the full length door locking bar?


While none of those look suitable, there are locks working on the same
principle that are made specifically for your application. If you like
the idea, I recommend visiting an independent locksmith and asking what
they recommend. They will know which ones are good and which ones are
doubtful.


--
Colin Bignell