Eye Ophthalmic Tool Optical PH Ruler Pupil Height Meter Optometry PH Test 1 Pair
Description:
brand new and
Feature:
Plastic PH meter/PH Ruler, very durable and use to use.
It is designed to measure the pupil height.
It is a very good promotional item and perfect for hospital, supplies.
PH Ruler only, other accessories demo in the picture is not included!

Specifications:
Item Type: PH Ruler
Material: ABS
Size: 82x33mm/3.2x1.2in
Color: White
Measuring Scope: 0-40mm
Usage: for measuring pupil height
Quantity: 1 Set

How to use:
1.Remove the lens.
2.The bottom end of the Pupil height ruler is clamped into the frame.
3.The bottom of the frame reads the value from bottom to top.

Note:
Transition: 1cm=10mm=0.39inch
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package Includes:
1 Pair x PH Ruler