... - 50Storage temperature: -20 - 60working time:50000hours. Touch times:>1,000,000/dothorizontal frequency:30-80KHZ field frequency ... optional)touch Linearity: ≤1.5% Transmittance:≥85% Operated System is WIN9X,2000,ME,CE/UNIXPlastic Case size: 39 * 6.8 ... * 40.5 * 75 (unit: cm) 30.5kgAccessories: Touch Pen, CD-ROM drive, USB computer connection, power supply, ... 100*100 & 75 & 75mm 17 touch screen monitor