Connected battery charger to 120v outlet then connected unit to charger. Let charge over night. Do not have any software just optometry unit still able to test unit. Turned on unit screen turned used calibration tool included with unit calibrated and then tested on volunteer was able to capture image.
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Optikon Keratron Scout Medical Optometry Unit for Ophthalmology Vision Exams
Forehead rest will not stay on
MARKS & STAINS
Unit has scuffs and marks on it
Model: Keratron Scout
Serial Number: 428AX
Power Requirements: Rechargeable Battery
Year: Not available