... controller for 4-wire/5-wire resistive touch screen, USB/RS232 optional; high performance, competitive price...... Our 5- ... - 98.5% Linearity Supports Multiple Operating Systems - Windows, Linux, Mac Scratch Proof - exceeds 3H hardness level Common Applications POS ... Web Phone, Tablet PC, Web Pad, Mobile Warehousing, eBook, GPS etc Specifications Touchscreen: Analog Resistive Standard Sizes: 1.8" ~ ...