A biometric lock or safe should not sit untouched for months simply because it opens with a fingerprint today. Regular testing helps catch weak batteries, dirty sensors, failed recognition, and backup-entry problems before a real emergency turns a simple lock into a very expensive headache.
Testing does not require a security degree, a toolbox full of mysterious gadgets, or an afternoon spent arguing with a stubborn fingerprint scanner. A few minutes at sensible intervals can reveal whether the system still works the way it should, especially after battery changes, long periods of disuse, extreme temperatures, or changes to the people who need access.
