Huanyu Optical Digital PD Ruler Pupilometer Pupil Distance Meter Tester Interpupillary Distance Scale Optometry Tool with Memory Function

Huanyu Optical Digital PD Ruler Pupilometer Pupil Distance Meter Tester Interpupillary Distance Scale Optometry Tool with Memory Function

• The PD ruler can help you when you want to purchase eyeglasses online.
• Respectively: left or right monocular measurements
• Turn off Automatically: Turns off after 1 minute or you can press a button and shut it off. It stays on and drains thebatteries. Store device flat side down, It will turn off automatmally.
• Long Reading Time: It does retain the readings on screen while it is on and even in memory when it is switched back on as long as the slide controls have not been moved. The digtal PD Meter does have a reading which lasts approximately 10 minutes
• Tips: Put the notch over your nose, as close to your eyes as you can, then find the middle of your pupils in a mirror, read the line closest to the middle of the pupils

<b>Huanyu Instrument</b> <br> Huanyu Instrument mainly provides instruments and tools. We provide voltage customized services, specific requirements can be contacted by email, we will respond promptly.After your order is confirmed, the product usually takes 4--8 business days to arrive to your hand.<br> <br> <b>Technique Parameters :</b> <br> Power supply: 23A,12V battery (PLEASE NOTE: BATTERY IS FORBIDDEN BY INTERNATION SHIPMENT, SO THE BATTERIES ARE NOT INCLUDED IN THE PACKAGE!)<br> Power: 5W<br> Net weight 0.2kg<br><br> <b>Feature:</b> <br> 1.It applys precise optical structure, the line of light is very clear and precise measurement.The measurement results are displayed digitally, and the left eye and right eye measuring values are displayed separately.<br> 2.Simple and rapid measuring operation<br> 3.After the measurement, automatic shutdown and memory function, enable to save the power and data will not be lost.<br> 4.It can also be used in monocular the left eye and right eye separately.<br><br> <b>Friendly Reminder</b> <br> When purchase, please confirm the product is from our Huanyu Instrument, otherwise we can't ensure the quality and after-sale service.We will try our best to provide you the best product and service, welcome to buy our product.