... 0 - 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: 42 * 7 ... .8 * 35 (unit: cm) W/O standsstand: H 100cm, Adjustable stand Accessories: Touch Pen, ... 100*100 & 75 & 75mm 17'' resistive touch screen