GHF-4 is a standard fingerprint time attendance and door access control system. The robust design and highly reliable performance are results of many years of research efforts and extensive testing. The network-enabled fingerprint scanner can be used for door access control and as a fingerprint scanner module for attendance management system (AMS) and other software applications. It is suitable for offices, buildings, factories, hotels, hospitals, banks and military facilities. Specifications: 1) Dimensions (L x W x H): 150 x 145 x 38.5mm 2) User capacity: 1,000/1,500 3) Record capacity: 50,000/100,000 4) Verification mode: 1:1 or 1:N 5) Access controls: 50 time zone, 5 grouping, 10 combinations, holiday management, supports high number of fingerprint accessing, improves fingerprint access grade security management, supports standalone work 6) Electronic controls: direct relay output 3A/12V DC 7) Communication: RS232, RS485, TCP/IP 8) Keypad or display: LCD with 80 character and figure keypad, wireless doorbell 9) Power: 9-24V DC 10) Standby current: 0.50mA 11) Working current: 400mA 12) Validation speed: ≤ 2s 13) FRR: ≤ 1% 14) FAR: ≤ 0.0001% 15) Baud rate: a) RS232:115,200 b) RS485: 115,200 TCP/IP(RJ45 interface) 16) Operating temperature: 0- 45°C 17) Operating humidity: 20-80% 18) Management software: transaction fingerprint management and access control attendance options and network management 19) Languages: English, Simplified Chinese, Traditional Chinese