4CH Mobile DVR Support Automatic Download and Message Issued

Basic Info.Export Markets: GlobalProduct DescriptionM7051.Embedded Linux operating system2.Two level management user password, administrator password3.3G, GPS, WIFI otptional4.4-ch composite video input, automotive aviation head5.1-ch automotive aviation head composite video output, 1-ch Lotus head video output6.Single-picture view, four-picture view7.4-ch Alarm input, above 3.3V is high level alarm8.Support 1 SATA HDD with 1TB and SD card with 128 GB