Accurate pupillary distance measurement is critical for proper frame fitting. Hongdee’s PD meter uses infrared sensors to locate pupil centers in <2 seconds. The dual-mode function allows U to record either monocular or binocular PD values, which can be transferred via USB to your digital charting system.
- Infrared sensors: Automatic detection of pupil center for both eyes.
- Dual mode: U can measure PD in both binocular and monocular modes.
- Portable design: Battery-powered (<200 g) with protective case.
| Parameter | Specification |
| Model Example | PD-400 |
| Binocular pupillary distance | 44-86mm |
| Left or right eye pupil distance | 22-43mm |
| Absolute value of indicated error | <0.5mm |
| Absolute value of asymmetrical error | ≤0.5mm |
| Absolute value of rounding error | ≤0.5mm |
| Distance of target | 30 – 0 |
| Battery capacity | 3000mAh |
| Instrument appearance size | 220mm (L) x 160mm (W) x 65mm (H) |
| Weight | 0.9kg |
- Speed: Instant pupil detection eliminates manual ruler measurements.
- Portability: Lightweight design is ideal for mobile dispensing clinics.
- Durability: Shock-resistant housing withstands daily handling.
We specialize in providing high-quality diagnostic devices, refraction systems, low vision aids, and ophthalmic furniture — all backed by a complete supply chain, strong OEM/ODM service, and a customer-first philosophy.