Hikvision Value Series DS-K1T344MBWX-QRE1. Display technology: LCD, Display diagonal: 4.5", Display resolution: 480 x 854 pixels. Camera resolution (numeric): 2 MP. Housing color: Black, Authentication modes: Multiple, Face recognition distance: 11.8 - 59.1" (0.3 - 1.5 m). Input voltage: 12 DC, Input current: 1 A. Operating system installed: Linux