DPM-30 Digital Pupilometer (PD Meter) - Luneau Technology USA
Features Include: Cornea reflection light coincidence method Left/Right distance: 24-38.5mm Tolerance: .25mm LED Digital Display Included eye shield Near and distance diopter changer LED illumination Single eye or both eye measurement available Power saving mode: automatic shutoff after 1 min of idle time Measures distance of corneal reflections for accurate pupillary distance