| Hardware characteristics |  | 
| Hardware architecture | Dual core processing chip, RTKe embedded operating system | 
| Communication module | 3G/4G | 
| reliability design | Power 4 protection, level 4 watchdog | 
| Circuit board protection | Three proof paint, spraying, protection | 
| technical specifications |  | 
| working voltage | 9~36 V/DC | 
| Limiting voltage | 100V/DC | 
| Battery protection voltage | low:10V(12Vehicle) or 20V(24Vvehicle)high:36V | 
| Power reverse resistance voltage | 100V | 
| Working current | Average operating current: uncertain at presentMaximum operating current: uncertain at present Power saving mode: not sure | 
| Spare battery | 820mAh | 
| Installation method | Mounting of outer support | 
| Shell material | Metal case | 
| Interface |  | 
| Audio interface | 4 way audio input (air header)1 channel audio output (RCA) | 
| Video interface | 8 way video input (air header)1 channel video output (RCA) | 
| data interface | 4 way RS-2321 way USB, 1 way 485, 1 way CAN bus | 
| storage medium | HDD | 
| Environmental characteristics |  | 
| Automobile electric spark interference immunity | The discharge voltage is 10 kV to 20 kV, and the discharge frequency is 20 times /s to 200 times /s | 
| Electrical fast transient pulse swarm immunity | 4KV,Experimental grade IV | 
| ESD immunity | Contact discharge 6KV, air discharge 8KV, experimental grade III | 
| Conducted disturbance limit | Meets B level requirements | 
| Radiation disturbance limit | Meets B level requirements | 
| temperature characteristic | WORKING -30 ℃~+70 ℃STORAGE -40℃~+85℃ | 
| humidity | 5% ~ 95% non-condensing | 
| Image performance |  | 
| Picture format | JPEG、GIF | 
| Picture resolution | Support QQVGA160×120、QVGA320×240、VGA640×480Support  SQCIF160×120、QCIF176×144、 | 
| Video performance |  | 
| Video compression standard | H.264 | 
| Image format | D1/Half D1/CIF/QCIF,Support for 8 way D1 | 
| frame rate | 1-25fps | 
| Audio performance |  | 
| Coded format | Support AMR、G711、G726、ADPCM Multiple coded digital recording | 
| data storage |  | 
| Track record storage | 10,000 Bar track recording storage | 
| Blind bubao cache | Cache 1400 (point) location information | 
| Road detection storage | 8 road data can be set, each road can be composed of 1023 folding lines and 256 stations | 
| Attribute area store | You can set 80 rectangular areas (where 20 polygon areas can be set) |