Biomark GLOBAL POCKET READER PLUS Quick Start Manual page 5

GPR Plus Reader
DO NOT ATTEMPT CHARGING STANDARD
ALKALINE BATTERIES.
CHARGE THE BATTERIES INDOORS AND BETWEEN
0°C AND +40°C TEMPERATURES ONLY.
If the reader is not being used for extended periods of
time, charge the batteries at least once every three
months to extend their life.
QUICK START GUIDE 5