ESR-810 Digital Auto-Refractometer

Description

• 7 “COLOR TFT LCD SCREEN
• THERMAL PRINTER
• MEASURING RANGE:
  SPHERE: -20.00 ~ + 20.00D (0.12D 0.25D STEPS OR)
  CYLINDER: 0.00 ~ +/- 10.00D (0.12D 0.25D STEPS OR)
  AXE: 1 ~ 180 (STEP 1)