PIN, fingerprint, card, app or key: which to actually use
Most locks worth fitting offer five ways in. The mistake is picking one and turning the rest off.
Section
Guides
How these locks work, what goes wrong, and what to check before you buy one.
Smart locks and tenancies: what each side needs to check
The hardware is the easy part. Most of the trouble in rented property comes from permission, fire doors and who holds the codes.
What happens when a smart lock's battery dies?
It is the first question almost everyone asks, and the honest answer is that being locked out by a flat battery is close to a solved problem — if you buy accordingly.