... HDD mobile DVR(up to 1TB) Rugged mobile dvr GPS,3G,WIFI,G-sensor support 6CH alarm,UPS... etc Mobile ... in G-SensorSystem upgradeSupport SD card upgrade, HDD upgrade,remote upgradePower supply & consumptionPower supply management1 ... . ACC startup/shutdown2. Delay startup/shutdown3. HDD lock startup/shutdown4. Timing startup/shutdownInput voltageDC:+8V ... ]Function alarm H.264 HDD 4ch Mobile DVR