Manual Optical Lensmeter, Portable Focimeter Optometry Machine with External Reading, Measuring Range 0 to ±25D, External Reading 0.125D, Accurate Measurement for Optical Shops, Optician Centers

• Manual Lensmeter: Measures lens refraction, prism, cylindrical axis, and baseline direction. Also tests printed marks and optical center of the lens.
• Improved Design: AC/DC dual power (5 #5 DC battery). Eyepiece focusing range: ±5 D. Vertex refraction measurement range: -20D to +20 D.
• Self-Calibration Function: Provides accurate measurement results with high reliability. Suitable for measuring 16-86mm diameter lenses.
• Portable And Lightweight: Convenient for handheld or desk testing. Ideal for spectacles measurement, processing factories, sales departments, hospitals, and optical element factories.
• Easy To Operate: Ensures correction of spot center and enables measurement of lenses and reflectors. Clear scale, intuitive reading, high precision, and reliable.

Specification: Measuring range: 0 ~ ±25D; Minimum scale value: external reading 0.125D Internal reading: 0.125D when 0～±5D, 0.25D when ±5D～±25D Digital display 0.01D; Cylindrical astigmatism axis angle: 0~180°, minimum scale value 1°; Prism diopter: 0～5△, minimum scale value 1△ With prism compensator 0～20△, minimum scale value 1△; Prism base angle: 0~180; Eyepiece diopter adjustment range: ±5D; The size range of the lenses tested: Φ16～Φ86㎜. Voltage: 110Voltage/50Hz/DC -3V or 110Voltage/60Hz/DC -3V Inner box size: 27.5(L)x12(w)x43(H)cm Products include: 1 * Manual eyeglass lens light meter