PD Meter Interpupillary Distance Tester Optical Digital Pupilometer 45-82mm

Description

TJY-66 PD Meter Interpupillary Distance Tester Optical Digital Pupilometer
It is an ideal digital precision optical meter for measuring distance between human pupils in the process of optometry.
It is designed in a scientific and reasonable way, integrating technologies on optics and microelectronics. It has the most exactitude configuration, measuring more correctly.
It also has the focusing button for distance converting.
The pupil distance is measured by making the papillary light point and measuring light in direct line, in the way of monocular eye or binocular eyes.
Specifications:
Effective Range of Measurement: Binocular papillary distance: 45 ~ 82 mm
Left or right papillary distance: 22.5 ~ 41 mm
Indication Error: ≤ 0.5 mm
Rounding Error: ≤ 0.5 mm
Absolute value of the asymmetry error: ≤0.5mm
Distance of Target: 30 cm ~ ∞
Power Supply: DC 1.5 V; 1 x 5# AA Battery (Battery is not included.)
Time for Automatic Shut-off: About one minute after stopping operation
Dimension: 221 x 167x 62 mm
Weight: 0.8 kg
Package Included:
1 x  Optical Digital PD Meter
Payment policy
shipping policy
return policy
working time
Payment policy
1We accept
Paypal
only.
2. All payment should be completed within 7 business days after auction
e
nd.
shipping policy
1.Item prossing time.
We will dispatch the products within 1-3 working days upon the system confirms your payment,when buyers have some special request (e.g. Voltage ,color...etc.),we will delay to ship the orders and will inform buyers about it.
2.shipping methods Items are shipped out via AU post  ,we will choose the reasonable
way for you
return policy
Missing item or get wrong item or Get damaged items, DOA (dead on arrival)When you (buyer) get the package, if you find there are some items missing from your order or we sent you incorrect items or you find the item is damaged (cracked) in appearance or the item does not work (DOA), please keep all the items in original condition and also keep the packing stuff, weigh all the items together with packing, then take some photos of them and send us the photos by email. Please contact us within 7 days after receipt of package. We will investigate the case when we get your email. If the case is true, we will send you the missing item or replacement or refund (sometimes you may be requested to return the incorrect item). 2)If you are not happy for any reason with your purchase or you purchased the wrong item , If the return is not a result of our error, customers will be required to cover shipping cost both ways .3)all returned merchandise must be in original factory condition (including the original packaging and everything).4) all items must be returned within 3
0day
s o
f purchasing the item ,5) For the replacement, we will send it out in t
he shipment ways as the customer selected in their
original order.
working time
Beijing time :AM 8:00 -PM 8: 00