1. IR remote control to change the digits information (10 m ) 2.. Computer communication RS232, RS485, TCP, MODUBUS Communication protocol 3. Application system: XP , WIN7, UNIX, MAC, Database: DB2, SQL, ORACLE 4. Highlight LED diisplay 5. Automatic brightness adjustment 6. AC110V~220V, DC5V~12V 7. Power supply: With UL & CE 8. Can install into 12V or 24V battery