Optical Mark Reader is a high-tech data input computer peripheral. NANHAO OMR has gained 6 patents and 12 computer software copyrights. Our OMR is famous for its excellent performances and low prices. It is very light and easy to operate. It can read thousands of information every second and nearly no error. Its application characteristics are to design forms unitedly, fill in marks dispersedly, input together and disposal quickly. It has been widely used in the standard examinations of Education, Census, Election, taxation, Personal Management, etc.