NexusLab padlock turns a fingerprint into a reliable access key. Durable stainless steel and zinc alloy body offers strong protection against break-ins and wear. Device stores up to 10 unique fingerprints, preventing unauthorized opening. Water- and dust-resistant construction operates reliably at temperatures from 14 to 113 °F. Power from two batteries supports up to 12 months of standby time, while a light indicator signals low charge in advance