General description The Waterproof Biometric Fingerprint Lock is a keyless security solution designed for various applications. It features advanced semiconductor fingerprint technology for quick unlocking and can store up to 20 fingerprints. This portable padlock is made from high-quality zinc alloy, ensuring durability and protection against theft. With a rechargeable lithium battery, it offers a long standby time of up to 12 months and can be unlocked approximately 6000 times on a full charge. Technical specifications Product Name: Smart Fingerprint Padlock Item model number: O30 Lock body material: Zinc alloy Color: Blue Unlocking method: Fingerprint recognition Number of fingerprints stored: 20 Fingerprint entry attempts: 10 Charging time: 2-4 hours Charging interface: Micro-USB Maximum standby time: 1 year Low battery alarm: Red light flashes for 5 seconds after unlocking to indicate low current Unlocking capability after low battery: Up to 200 times Antistatic level: Contact