This outdoor access control unit combines capacitive fingerprint recognition with practical protection and flexible integration to support secure, convenient entry control for homes and businesses. Key benefits Secure, fast access: Capacitive fingerprint sensor provides reliable biometric identification for quick entry without keys. Tamper awareness: Builtin photoresistor enables tamper detection to help protect the device from damage or unauthorized interference. Multidoor control: Support for interlocking two devices allows coordinated control of two doors, useful for airlock or doubledoor entry setups. Clear status and alerts: Threecolor LED status display, integrated alarm, and buzzer output keep users informed of access state and alert on events. Large user capacity: Onboard relay and memory support up to 1000 user accounts (988 normal users, 2 emergency users, 10 visitor accounts) and store up to 200 fingerprints, suitable for medium to large installations. Energyconscious lighting: Backlit keypad improves visibility in low light and can be set to turn off automatically after 20 seconds. Features and performance Biometric reader: Capacitive fingerprint sensor for accurate recognition and low false acceptance. Tamper protection: Photoresistor senses light changes that indicate potential tampering and can trigger alarm output. Integration: Builtin relay provides direct control of electric locks and supports integration with existing access control hardware. Indicators and alerts: Threecolor LED and buzzer provide unambiguous feedback for grants, denials, and alarm conditions. Usability: Backlit keypad with automatic timeout enhances usability while conserving power. Installation and operation: Designed for straightforward installation and daily operation in outdoor settings. Suitable applications Residential or apartment building main entrances where interlocked door control and visitor management are needed. Office or commercial building access where large user capacity and clear status indicators simplify daily access management. Schools, hospitals, or factories that require reliable outdoor access control with tamper detection and alarm integration. What this product delivers A practical, durable outdoor access control solution that combines biometric convenience, tamperaware protection, and flexible integration for twodoor interlock scenarios. Its large user and fingerprint capacity, LED status display, alarm output, and backlit keypad make it suitable for a wide range of residential and commercial installations.