... Heater and fans speed test Key features:1) Double layer of die-cast aluminum design, can dissipate heat ... parameter via menu.3) Auto-identify various of brand cameras and auto read camera model when ... and support the linkage (recall preset and several of scan modes. Tracking. Pattern. Auto-level scan) ... a given leisure time.17) RS485 control, integrated various of protocols, PELCO-D, PELCO-P, KALATEL, AD, ...