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A digital precision optical instrument used to measure PD, PH and VD in the process of optometry for fitting spectacles.
| Model | PD meter BRT-5 |
|---|---|
| binocular distance | 46 – 82 mm |
| Power | DC 3v ( 2 pcs 5# AA battery ) |
| Weight | 0.7Kg |
Description:
1.it employs precise optical structure, the line of light is very clear and precise measurement. The measurement results are displayed digitally, and the left eye and right eye measuring values are displayed separately.
2.simple and rapid measuring operation, free operation o f the direct PD adjustment lever are possible. Combining with the adjustable viewing distance selecting lever for measuring all kind of the viewing distance, the PD measurement is simple and precise.
3.When measuring is finished, auto power-off and memory function enable to save the data and not to be lost.
4.Also can be used in monocular the left eye and right eye separately.
Parameter
Effective measurement range: binocular distance: 46 – 82 mm, left and right distance: 23 – 41 mm
Indication error: ≤ 0.5 mm
Target distance: 30 cm to ∞
Voltage: DC 3v ( 2 pcs 5# AA battery )
Net weight: 0.7 kg
Inner box size: 28 ( L ) x 19 ( W) x 10 ( H ) cm
