... (8~19") HMI 2. Atom D525 CPU 3. 3*RS232,2*RS232/422/485,1*PS/2,1*LPT,4*USB,2 ... alloy(Better than Aluminium) Resistive Touchscreen 5*COM(3*RS232, 2*RS232/422/485), 1*PS/2, 1*VGA, 1 ... m2Contrast Ratio450:1Touch screenTypeResistive TouchscreenController InterfaceInternal USB ( RS-232 interface option)Light Transmission81% or moreOperating Force≤250gLife Expectancy10 MillionsEnvironmental ...