Compact SUNX Model LX-100 offers mark and color mode detection with 4-digit display that enables numerical sensing control and minute settings. Mark mode selects single color from 3 RGB LEDs to realize 45 msec response time, while color mode uses all 3 RGB LEDs to determine RGB ratio of mark sensor. Automatic function determines most suitable LED for largest contrast between mark and base. Built-in 12-bit A/D converter enables 1/4,000-resolution judgments.