1. High accuracy 2. RS232 interface 3. Good partner of drawing 4. Compatible to support more than 30 international formats Cursor: 16 button cursorInterface Cable: RS232Baud rate: 150,300,600,1200,2400,4800, 9600,19200Output formats: More than 30 international standards, including 20 kinds ofASCII and 11 Binary.Operationg modes: Point, line, continuous, line incremental, continuousincremental, ...