【Simple and accurate】Compared with those printable rulers, our digital PD meter adopts high precision sensor and advanced intelligent electronic system to display the measurement results digitally, which is intuitive, accurate and easy to operate. (Please bring your own 2 AA batteries, Not Included in the package)
【Measuring accuracy plus to minus 0.1/0.2/0.5mm adjustable】: According to the accuracy requirements of the actual glasses, set the measurement step increment, that is, accuracy, instead of fixed 0.5mm, the measurement results of Huanyu PD measuring tool is more reliable
【30cm to ∞ adjustable vision distance】The 9A pupil distance meter can set 30cm, 40cm, 50cm, 1m, 2m, ∞ and other different vision distance gears
【Multifunctional】Our pupillometer also has the following functions: Stop using for 3 minutes automatically shut down; Shutdown automatic memory last value (No machine operation during this period); 0.5 to 3.0 degree LED lamp brightness adjustable; plus 2.00d visual acuity compensation
For non-consumable and non human damaged accessories, we will resend a new one for customers to replace
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