Digital PD Meter Optical pupilometer Brand new

Description

Main features:
Cornea reflection light coincidence method is used;
This operates by aligning luminous points on the pupils with the measuring line;
Results are displayed digitally in LCD window: Right, PD, Left;
Automatic power shut-off in one minute after operation is completed.
Specifications:
Range of measurement: 50-80mm(Total) in 0.5mm steps, 25-40mm(Each) in 0.5mm steps
Display: Liquid crystal digital display
Fixation target: Green dot on illuminated background
Focus distance selection for PD measurement conversion: 30cm, 40cm, 50cm, 100cm, 200cm, infinity (
no actual focusing distance adjustment mechanisam
)
Illumination: LED
Automatical shut-off: after one minute of inactivity
Power supply: 3V DC, 2 AA batteries (
no battery included in the package
)