General description The Smart Electronic Biometric Fingerprint Lock offers advanced security features for your home, allowing you to unlock your door in five different ways: Wechat access, fingerprint, RFID card, PIN, and a mechanical key. Its compact design is compatible with both wooden and metal doors, making it a versatile choice for various settings. Technical specifications Unlock methods: Wechat mini program, fingerprint, RFID smart card, password, mechanical key Materials: Zinc alloy Automatic locking: Yes Supports right or left door: Yes Low battery reminder function: Yes (when battery is less than 4.8V) Battery type: 12V / 4 x AA batteries (not included) Working temperature: -10℃ to 60℃ Fingerprint capacity: ≤100 pcs Password capacity: ≤100 pcs Card capacity: ≤100 pcs Compatibility and accessories Requires an additional small hole to be drilled in the door Door thickness must be measured for compatibility Length and width of the guide plate must be measured for proper fit