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Description |
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PD Meter is a digital precision optical instrument used to measure distance between human pupils in the process of optometry.
Please kindly note: not included the battery for safety. Consists of measurement systems, optical systems, electronic systems and computer software to convert four parts, design scientific and reasonable.
1. Mechanical gossamer human cornea reflection point alignment detection methods to measure and achieve continuous measurement, sampling points have a direct, high alignment accuracy of characteristics;
2. High-precision linear sensor, advanced intelligent electronic systems, digital display of measurement results, intuitive, easy to read, accurate;
3.LED light, low-power design, longer battery life;
4. diopter compensation offer + 2.00D
5.LED light intensity is adjustable.
Technical parameters
1. the effective measurement range binocular pupillary distance: 45 ~ 82mm
Left eye, right eye pupil distance: 22.5 ~ 41mm
2. showing the value of the absolute value of the error ≤0.5mm
3. the absolute value of the asymmetry error ≤0.5mm
4. the absolute value of the rounding error ≤0.5mm
5. the target distance 30cm ~ ∞
6. power specifications: 1*AA Battery
7. automatic turn off: Stop using automatic trun off after half a minute, can also be manually turned off.
8. Instrument Dimensions 221mm (length) * 167mm * (width) * 62mm (H)
9. weight 0.53kg
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Payment |
We only accept payment from PAYPAL and all major creditcards accepted by paypal. Any problem with payment pls contact us first. |
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Shipping |
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Items are normally shipped within 1-2 working days of receiving (cleared) payment and will be shipped by air parcel to worldwide. We do offer combined shipping discount if you pay all together.The shipping & handling fee includes packing, warehouse and distribution costs, not postage only, these are non- refundable.The estimated shipping time is about 10 to 20 days to arrive buyers' location. All items will only be shipped to the address you registered with PayPal. please make sure yourshipping address on Ebay is correct BEFORE placing your order. |
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Contact Us |
Your satisfaction is important to us. If you are not satisfied with our products/services, please contact us BEFORE leaving us any neutral or negative feedback. We will try our best to resolve any issue.
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