... phone dvr alarm system,Campus network video alarm system,camera alarm, 3g alarm, alarm, alarm system, ... 8ch dvr alarm system,Campus network video alarm system,camera alarm, 3g alarm, alarm, alarm system, ... 8ch dvr alarm system,Campus network video alarm system,camera alarm, 3g alarm, alarm, gsm alarm system ... feature:8 Wired zones, 32 wireless zones or BUS zones, 4 channel video input 8 remote control ...