... . Widely used for security and surveillance in the domain of Mobile,Steamship,Train,etc.Product Features:1. 4 channel D1/HD1 ... to find.10. Support network school function, log query function.11. DC8-48V wide voltage designs ,with anti-pulse voltage protection function ... , cold, dusty, humid environment to run. Specifications ItemsItem Name4 Channel Mobile DVR(HDD Storage)Item NumberTS-210/A/B/C/D ...