PD Meter (HE-710)

PD Meter
1.Use battery.Battery life is 6 months.
2.Power off automatically .
3.Power on automatically.
4.Correct measure.

Summary:

It is a digital precision optical instrument used to measure distance
between human pupils in the process of optometry for fitting spectacles.

Detailed Product Description:
1, It employs 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.
2, Simple and rapid measuring operation, and free operation of the direct
   PD adjustment lever are possible.
3, When the measuring operation is finished, the auto poweroff and memory
   function,enable to save the power and not to lose the data.
4, It can also be used in monocular the left eye and right eye separately.

Parameter:
Electric Voltage:23A 12V battery
Power:5W
Weight:0.2kg
Volume:21.5(L)x12.2(w)x44(H)cm