Our main production-optical mark reader.LT40S-ⅠPrincipal characteristics: 1. Adopt the latest DSP technique. 2. Can read forms with track distance of 1/6". 3. Can read bar code. 4. The photoelectric sensor doesn't need to be adjusted. 5. Can read forms with 50 routes at most. Main application fields: Standard examinations in colleges, high schools and elementary schools, educational evaluations, students' status management, staff examination and so on. Mainly in European countries.