... mens extrnal 1 pcs camera. 2.Support 3G function, 3.Campus network video alarm system 4.Auto ... system,Campus network video alarm system,camera alarm, 3g alarm, alarm, alarm system, wireless alarm,home... ... system,Campus network video alarm system,camera alarm, 3g alarm, alarm, gsm alarm system, wireless ... port interface, wireless WI-FI and 3G mobile browse 3g dvr camera alarm system dvr security alarm ...