Screen size: 7-inch  
Serial port: RS485  
Expansion storage: TF card slot (SDHC compatible)  
Buttons: Hidden reset button  
Indicator: Power LED  
Active display area (AA): 153.7×86.2mm (L×W)  
Dimensions (mm): 184.0×118.0×15.1 (L×W×H) (max. height: 23.2mm)  
Voltage: 4.5-30V