Fingerprint Biometric Digital Lock for Office and Home SL-F8905
- Master card is the highest authority of the door lock, please keep it safe
- A mechanical key is for emergency unlock, please put it in a safe place
- Dispose of used batteries according to local environmental requirements
- Do not a mixture of old and new, or different brand batteries
- Use AA alkaline batteries or AA1.5V rechargeable lithium batteries
- Do not use water or other liquid shower door lock
- Technological innovation, Please check our website
- Final interpretation of this manual is on our company