1) Speed dome camera 2) RS-485 multi-protocol. Pelco_P/D, AD, PHILIPS compatible 3) 4 alarm inputs and 2 outputs 4) IP66, OEM Key features:1) Full aluminum with fast installation design, can dissipate heat more sufficiently; Black inner-shell makes sharper monitor.2) Built-in OSD menu in English, support 20 English letters input; Display or set parameter via menu.3) Auto-identify various of brand ...