Advice for Smart Door Control with Shelly: Which Product Do I Need?

[Domme]

Hello dear Shelly Community,

Unfortunately, I don't really know much about electricity and need advice on what to buy. I hope I've come to the right place in this forum.

I live in an apartment building and would like to make the front door smart. Unfortunately, this is not possible with conventional Smartlocks, which is why I have to do a bit of trickery.

We can open the front door using a button. This emits an electrical signal when it is pressed. Which Shelly product would I need to be able to continue to use this button manually AND also be able to send the signal via Smart Home?

 

[Heinz]

it all depends on the type of system is being used to open the front door if you could provide more information on the type of system you have then more information can be provided 

[wooly]

if it is via a button, as usually, according the voltage/current it get an uni+ or a 1+ would do the job. [some uses too much current for an UNI+, so use a relay one.)