Key Features:16Ch Real-time DisplayChinese/English OSD MenuSupport 16 image split display, 9 image split display, 8 image split display, Quad image display. Each image quality can adjustable Images are switchable automatically 2 PIP functions and 1PIP function, each PIP position adjustable and image channel name can be editedDual Split function, each picture position adjustable and image channel name can be editedZoom function, a zoomed area can be moved while zoom function is invokedHigh quality image freezing function, multi images can be froze on different channelsImage losing alarm60 groups event recordsEach channel number can be editedScreen position and alarm duration adjustableSupport RS485 and RS232 ConnectionLoop-through FunctionSupport IR remote controllerSpec Info:Model Number:ST918Video System:NTSC/PALImage Refreshing Speed:PAL: 25 f/s；NTSC: 30f/sFrame Rate:400f/s (PAL) ; 480f/s (NTSC)Image Resolution:PAL：720×576；NTSC：720×480Video Input :16 channel video signal input ,1Vp-p,75Ω 1 channel recording playback video signal input, 1Vp-p,75ΩVideo Output:1 channel master monitor output, 1Vp-p,75Ω 1 channel slave monitor output, 1Vp-p,75Ω Audio Input:4 channel input（RCA）Audio Output:1 channel output（RCA）Control Port:PTZ and RS232 controller Auto Switch :0~99 SecEvent Record:60 groupsAlarm Out:NoOSD Language :English/ChineseVideo Adjust :Brightness ,Contrast, Saturation, Hue, Sharpness adjustablePower Consumption:12W(1000mA)Power Supply:DC12V