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Specification
Brand : StarNY
BulletPoint1 : Using mechanical hairspring to level at the reflecting point of human cornea to realize the consecutive measurement. It features direct point-sampling and high accuracy of orientation.
BulletPoint2 : Adopting high-precision line-shaped sensors, advanced intellectualized electronic systems and digital display which allow the testing results more visible, legible and accurate.
BulletPoint3 : The design of LED lamp-house and low-power consumption ensure the prolonged service life of batteries.
BulletPoint4 : It offers the +2.00D compensation for visual degree.
BulletPoint5 : The brightness of LED lamp-house is adjustable. 
ExternallyAssignedProductIdentifier1 : 0641055970230
ExternallyAssignedProductIdentifier2 : 641055970230
ItemName : StarNY Digital Pd Meters Optical Pd Meter Digital Pupilometer Pupillary Distance Pd/vd Meter PDs
ItemPackageDimensions_Height : 27.0002 centimeters
ItemPackageDimensions_Length : 10.0076 centimeters
ItemPackageDimensions_Width : 19.9898 centimeters
ItemPackageQuantity : 1
ItemShape : Rectangular
ItemTypeKeyword : digital-calipers
Manufacturer : StarNY
Material : Plastic Case of Digital Readout
ModelNumber : xyy-83
PartNumber : 1
PowerSourceType : Battery Powered
ProductDescription : PD Meter is a precision optical instrument used to measure distance between pupils in the process of optometry for spectacles
Effective range of measurement:
Binocular pupillary distance: 45-82mm
Left or right pupillary distance: 22.5-41mm
Absolute value of indicated error: ≤0.5 mm
Absolute value of asymmetrical error: ≤0.5 mm
Absolute value of rounding error: ≤0.5 mm
Focus range: 30cm to infinity
Power source:
Voltage: DC 3V
Specification: 5#AA battery (the batteries are not included)
Quantity: 2 pieces
Time for automatic shut-off: About 1 minute after stopping operation, or turn it off manually
Size: 221mm(L) x 164mm(W) x 63mm(H)
Weight: 0.66kg
What is in box ?
1 X Digital PD Meter
1 x English User Manual

ProductSiteLaunchDate : 2018-06-18T07:00:00.000Z
Resolution : 0.01 month
Style : Digital
SupplierDeclaredDgHzRegulation : not_applicable