With OSD Function 1. Built-in decoder board, all digital design, no data loss once power off, integrated ... two kinds of cameras: SONY, HITACHI. RS485 control. 4. Built-in Pan/Tilt, driven by a precise stepper electric motor, runs ... -direction monitoring, Tilt 180 automatic movement, consecutive monitoring 6. Built-in integrated digital color camera with zooming lens, high sensibility and ...