*aviliable size:17", 18.5", 19", 20", 21.5", 22", 23.6", 24", 26", 32", 37", 40", 42", 46", 47", 50", 52", 55", 60", 65", 72", 82", 84", 92"100" (support customize size max up to 200 ")
*touch point:2 ture simultaneously touch point
*Touch Technology: infrared technology
*Touch durability:Unimited
*Interface:USB2.0 compatible with USB1.1
*Power supply: one USB Powered
*Touch activation force:No pressure required
*Resolution:4096*4096
*Linearity error:< 5mm
*Response time:>7~13ms
*Scan speed:50scans/s
*lifetime:100 million times.
*Transmittance:>96%
*Operating temperature:-20℃~70℃
*Storage temperature:-40℃~85℃
*Operating voltage:+5VDC,
*range:+4.7V~+5.2V
*Power:1.25W±10%, current 250mA±10%
*Certificate: CE, FCC.Rohs
*operating system:windows7/Vista/XP/2000/2003, Linux, Mac OS
*warranty: one year parts and labor