... -2321L,WH-2321L,WH-2321L,WH-2321L(7-inch LCD screen,Aluminum panel,mechanical buttons)WH-2321Y, ... WH-2323Y,WH-2323Y,WH-2323Y,WH-2323Y(10-inch LCD screen,touch screen panel,inductive buttons)Note: ... I series equipment)4,Performance indeDisplay screen x7″ ,10.2″,16 :9 TFT LCD screenresolution800×480Video sizeD1 ... rate10M / 100M8-zoneSecurity alarmOperating temperature-10 °C ~+ 55 °Chumidity10% ~ 95%