Klevio, a smart home startup out of the U.K., is officially launching its first product: a smart intercom system that lets you control your front door lock remotely via an iOS and Android app on your phone. Dubbed “Klevio  One,” the device is designed to be retrofitted to existing electric strike-enabled locks, and also interfaces with intercom systems found on the communal doors of apartment blocks. This, say its makers, means that it is better suited to flats than smart locks already on the market.

In a call with Klevio co-founder and CEO Aleš Špetič, he explained that the approach the London-based company has taken is different to smart locks that typically use a motor to turn the lock and require tearing out and replacing your existing lock. In contrast, if you already have an electric strike as part of your lock — which a lot of apartments do — the Klevio One can simply be wired to interface with it. If you don’t, a Klevio installer can fit one to your existing lock for you.

This major upside of this approach is that Klevio isn’t re-inventing the whole wheel, but taking years old, tried and tested electric strike technology, and simply adding smart connectivity to it. It means the Klevio One works with multiple doors and there’s no need to modify the communal area of apartment buildings when installing it, since the device is located within an individual apartment. You can also still use your old physical keys as a backup, and the company says the use of Klevio won’t be obvious to anyone outside the building.