P.D. Meter mod.HX-L90

• The measuring range is from 48mm to 76mm.the resolution is 0.5mm,and the viewing distance is from 48cm to infinity. It can also be used in monocular measuring the left eye and right eye separately.
• The operation and storage temperatures of the unit should be between:
• Operation:10℃ to 40℃
• Storage:10℃ to 50℃
This unit operates on 3 batteries of type LR03