r/Locksmith • u/ltcast15 • 1d ago
I am NOT a locksmith. Help identifying a compatible smart lock for a 4-bolt multipoint door lock
I’ve been researching smart lock options for our front door for a while now, but haven’t been able to find a clear answer. Hoping someone here might be able to help!
I’d love to install a smart lock, preferably with a keypad, so I don’t have to carry a physical key everywhere.
From what I can tell, this appears to be a 4-bolt multipoint lock (please correct me if I’m wrong!). Unfortunately, there’s no visible manufacturer or model information anywhere on the hardware, and I’m having trouble figuring out which smart locks, if any, would be compatible.
A few important details:
● The lock requires 4 full rotations of the key or interior thumbturn to fully engage or retract all four bolts.
● Both the interior thumbturn and exterior key operate the same way.
● I rarely engage all four bolts, so I’d even be open to a smart lock that only operates the first locking position, assuming that’s possible and safe.
● Ideally, I’d like to keep the existing door and locking hardware rather than replace the entire mechanism.
I’ve looked into options like SwitchBot and Nuki, but can’t determine whether either would work with the four-turn mechanism.
Has anyone successfully installed a keypad or smart lock on something similar? Any recommendations for compatible products or ways to retrofit this setup?
Thanks in advance!
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u/goo_brick 1d ago
You shouldn't, but just for kicks what country are you in
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u/USERNAMEMEE 1d ago
Strongly advise against that idea
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u/ltcast15 1d ago
Out of curiosity, whyyyy?
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u/USERNAMEMEE 1d ago
Especially if you’re in the US. This is a European lock type, American locks and keypads don’t fit this type and they only kind that do are add on attachments which I never recommend. You have non standard prep and hardware and will have to deal with it as such.
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u/Capt_Socrates Actual Locksmith 1d ago
Why? Hard to find something compatible if it exists, what is compatible is going to be expensive and hard to get, and no one wants to do it because they are absolute mother fuckers that take a bunch of time and risk damaging parts on the door or the cassette because some of them require opening cassettes that aren’t supposed to be open.
Use a key or get a new door
Edit: does your key say Mul-T-Lock? Because if it doesn’t chances are it’s a cheap Chinese cassette that can’t really be serviced. The lack of brand on the cassette face plate makes me think it is one of the Chinese brands
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u/Shear_line 1d ago
It looks like you have a Euro profile cylinder. IIRC there is a smart lock that goes in that prep and doing it is pretty straight forward. I seem to recall some of the European locksmiths here mentioning one they like but I don't remember what it is. Hopefully one of them can chime in.
IMHO it's still a bad idea even if it is just a cylinder swap. Lock hardware is very region specific (honestly you're up a creek as it is with that lock in the US) and getting service/support/parts might be hard or impossible in the future, even if it comes from Europe
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u/Biggoofy20 1d ago
https://giphy.com/gifs/dILrAu24mU729pxPYN