Digital PD/PH/LD Meter with memory for eye exams 46-82mm
✔️ 9G digital pupilometer with 3 measuring modes and 30cm-∞ distance

This digital PD/PH/LD meter is a precision optical instrument used to measure pupillary distance, pupil height, and lens distance (LD) for eyewear fitting. It replaces simple rulers with a digital LCD display for quick, accurate readings in eye exams and optometry clinics.

✅ 3 measurement modes for PD, PH, and LD readings
✅ 46-82 mm pupillary distance range for wide patient coverage
✅ Memory function recalls last value after shutdown
✅ Adjustable vision distance from 30 cm to ∞ for accuracy
✅ Auto-shutdown after 2 minutes to save power
✅ White color design with LCD display and CE Certified

💡 What is a sealed ball bearing used for in precision optical measuring tools?

This handy component helps ensure smooth, accurate motion in measurement devices used in eye care. - Smooth, low-friction operation for precise readings - Increased durability in busy clinics - Dust and moisture protection for longer life ✝️