Usages:

Pd Meter is a digital optical instrument used to measure distance between human in the process of optometry for fitting spectacles, This Machine Using Cornea reflection Light Coincidence Measure Method, By Easily Aligning Luminous points On The Pupils With The Measuring Line. Easy To Operate And Precise Reliable Operation.

Features:

• Designed for easy hold
• Cornea reflection light coincidence method is used.
• This operates by aligning luminous points on the pupils with the measuring line.
• 3 measurements are given digitally in a single super large LCD window: Right, PD, Left.
• Resolution Step 0.5mm.
• Measurements can be made for a single eye or for both eyes.
• Measure PD of focusing-point distances: from 30cm to infinity.
• Automatic power shut-off after operation is completed about (2 minute).
• Fully sealed unit prevents dust, oil and moisture damage
• 1 Year manufacturer defect warranty

Specifications:

• Binocular pupilary distance: 44.0~83.0mm
• Left or Right pupilary distance: 22.0~41.5mm
• Effective Binocular pupillary distance: 45.0~82.0mm
• Effective Left or Right pupillary distance: 22.5~41.0mm
• Minimum Equivalent: 0.5mm
• Indication Error: 0.5mm
• Target distance: 30cm~++
• Power supply: DC 6V (4 AA cell)
• Automatic shut time: 1 min without use
• Operate Handling: key-press
• Dimensions: 150wx214dx51h mm
• Weight: 0.6kg