Smart Interior Door Lock Smart Door Lock Features: This lock features five different ways to open: - Open via Wi-Fi app remotely (from anywhere) - Open via fingerprint - Open via PIN code - Open via electronic card - Open via traditional door key Fingerprint Effectiveness: It uses a scratch, dust, and water-resistant sensor to make unlocking easy and secure. Up to 50 fingerprints can be registered, with unlocking time less than 0.3 seconds. Accessibility for Anyone: Grant access for a few weeks, a few hours, or a few minutes, and revoke it whenever you need to. It's up to you. Give temporary codes to guests, visitors, housekeepers, or employees. Never worry about losing, stealing, or duplicating keys again. High Security: Manufactured with the latest smart technologies to protect against hacking, ensuring your home's safety at all times. Weatherproof: The smart lock is ready to protect homes anywhere and can withstand temperatures ranging from -30°C / -22°F to 70°C / 158°F, as well as rainfall. Smart Door Lock Cylinder Measurements: The cylinder measurement is compatible with most doors according to international specifications and standards. Please check your door's measurement before purchasing the smart door lock. App Control Capability: Control via its dedicated app easily and securely. Smart Lock Specifications Materials: Aluminum alloy Dimensions: 156*59*35 mm Support System: IOS7.0 or Android 4.4 Unlocking Time: 1-1.5 seconds Available Colors: Black Lock App Name: tuya smart Power Supply: 4.5V - 6.5V (4 AAA dry batteries) (not included) Emergency Power: 5V DC Resolution: 500 dpi False Rejection Rate: ≤ 0.1% False Acceptance Rate: ≤ 0.0001% Dynamic Current: