If you are running a short term let, Air Bnb property or student accomodation, then EVVA Airkey is the lock you've been waiting for!
This RIM cylinder can be used with any standard, existing Rim locks!
Simply swap out your old mechanical Rim cylinder, and fit this in its place.
You can send mobile credentials out to your guests/tenants from your EVVA Airkey Cloud platform.
Set credentials to automatically expire after a certain time - perfect for holiday lets.
No local network required - all communication is done from the cloud to the users mobile device.