HY-9G PD&PH Meter

Feature:

 The PD&PH Meter is a digital precision optical instrument used to measure PD, PH and VD in the process of
optometry for fitting spectacles.

 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.

 Simple and rapid measuring operation, and free operation of the direct PD adjustment lever are
possible. Combining with the adjustable viewing distance selecting lever for measuring all kind of the viewing
distances, the PD measurement is simple and precise.

 When the measuring operation is finished, the auto power off and memory function, enable to save the power and not to lose the data.

 It can also be used in monocular the left eye and right eye separately

Technical Data
Effective range of measurement binocular pupillary
distance 46-82mm
left or right pupillary distance 23-4 1mm
Indication error <O. 5mm
Distance of targent 30cm~∞
Electric Voltage DC 3V(2pcs 5# AA battery)
Weight 0.7kg
Volume 28(L)x’ 19(w)x 10(H)cm