... ,17, 20,22,23 inch Grade A LCD monitor,three year guranteed.Brightness: 300cd/m2, Contrast ... <1mm. Light transmittance: ≥92%Surface hardness: 7 MoHs scale. Lifetime: 50,000,000 times at ... interfaceQuality locks for doors of different parts on the cabinet.sprayed metallic paint or plastic- ... ,stainless steel,waterproof,encrypted ; 5.High quality camera; 6.WiFi for internet connection ....Compliant with ...