Retrofit architectures
Seven ways to make a mechanical lock smart. They differ in how much they change the door, whether they keep the key, and which adapters have to be designed.
| Architecture | Door untouched | Keeps key | Difficulty | Fits |
|---|---|---|---|---|
| Motor on the thumb-turn | ✓ | ✓ | ●○○○ | Euro profile cylinder in a mortise case (DIN), UK oval cylinder (uPVC and composite doors), Multipoint locking system (uPVC / composite) |
| Electronics integrated in the cylinder | ✓ | ✓ | ●●●○ | Euro profile cylinder in a mortise case (DIN), UK oval cylinder (uPVC and composite doors) |
| Motor replacing the interior handle | ✓ | ✓ | ●●○○ | Euro profile cylinder in a mortise case (DIN), Singapore HDB main-door mortise set and metal gate lock, Australian deadlatch and deadlock, Korean push-pull digital lock base (mortise) |
| Surface motor on a deadbolt turn-piece | ✓ | ✓ | ●○○○ | Single-cylinder deadbolt (ANSI/BHMA A156.36), Rim nightlatch (surface-mounted), Japanese mortise case and cylinder (MIWA / GOAL style) |
| Full lock replacement on the same footprint | ✗ | ✗ | ●●●● | Singapore HDB main-door mortise set and metal gate lock, Korean push-pull digital lock base (mortise), Japanese mortise case and cylinder (MIWA / GOAL style), Mortise lockset (ANSI/BHMA A156.13), Australian deadlatch and deadlock |
| Motor on a rim (surface-mounted) lock | ✓ | ✓ | ●●○○ | Rim nightlatch (surface-mounted), Australian deadlatch and deadlock, Padlock, hasp and staple |
| Gate actuator (lever, chain or magnetic) | ✓ | ✓ | ●●●○ | Singapore HDB main-door mortise set and metal gate lock |