Mobile DVR With 4CH

1.4CH HDD DVR with dual SD card for safe storing. 
2.Optional built in GPS/3G/WIFI. 
3.Unique design with anti-vibration and heat dispersion.
4.Video resolution D1/HD1/CIF optional.
5.Support remote control and mouse(USB2.0,USB1.1).
6.Networking protocol: TCP/IP, FTP, SMTP, RTP, DHCP, DDNS.
7.Support RS485 Tilt control.
8.4 triggers and linux system.
9.Warning: support 7CHs high level alarm input, compatible 4CH dry 
contact alarm input. 
10.4 CH high level alarm output.