A safe with a biometric lock uses personal information like fingerprint or optical scanning to unlock the safe. A biometric safe's lock can store multiple fingerprints and optical scans for anyone authorized to access the safe. Within Drop Safes we carry 2 products with a biometric lock mechanism and various features such as Waterproof, Impact and Fireproof. Check out the best-selling product, the 1.3 cu. ft. Depository Money Safe with Digital Lock from SentrySafe.