Hikvision DS-K1T320MFWX-B Value Series Face Access Terminal, Operating system Linux, ROM: 4GB, RAM: 256MB, CPU: 960 MHz, Screen size 2.4 inch, FOV HFOV = 43°; VFOV = 25°, Audio output: Built-in buzzer, Face capacity: 500, Fingerprint capacity: 1,000, Card capacity: 1,000, Event capacity 100,000, Face recognition distance 0.3 m ~ 1.5 m, Card type M1 card, Support, 2.4 G 802.11b/g/n Wi-Fi, Supplement light: White light, Support Multi-factor authentication, Face anti-spoofing, Supports access control and local time and attendance function, 12 VDC, -10 °C to 55 °C.