... supply outdoors and other problems.FeatureslEmbedded model design, hardware dog internally installed, ensuring stable running of system, and support video, data business ... network transmissionVideo standardPAL,NTSCAudio CompressH.264Audio compressADPCMType of RecordersManual, timing, alarm, mobile surveillance, order triggerRecorders inquiryTime retrieval, fact retrieval, channel retrievalWay of ...