The Nuki Keypad 2.0 for the Smart Lock 3.0 is a good overall solution for retrofitting a fingerprint and code lock. It is easy to use and recognises fingers reliably. If there were illuminated buttons and decent anti-theft protection, it would be really good.

Compared to the predecessor, the fingerprint sensor and the change to robust and powerful AAA batteries offer a sensible improvement. However, this is offset by the fact that Nuki has doubled the price to 160 euros. The device shows its strengths especially for users who have children, guests or employees who want to have uncomplicated and flexible access to the house or flat...