... rotate, zoom in/out 2.Withstands severe environments 3.Stable, no-drif 2,4,6,10,16,32 points 32/42/52/55 ... rotation --Withstands severe environments --Stable, no-drift calibration performance --Vandal- and abrasion-resistant screens, ideal for rugged applications --Parallax-free performance ... Duplex USB 2.0 (Full Speed) Plug and play compatibleSerial RS-232. Baud Rate: 9600, 8 Data Bits, 1 Stop Bit, No ...