Pentax PLP-601 Instruction Manual page 16

Battery insertion for the detector
LS6 Detector
Slide the battery cover while pushing its
1
Insert the accumulated dry battery into the battery holder according
2
to its (+) and (-) marks.
Slide the battery cover to reinsert it.
3
Accumulated Dry Battery (6F22)
Battery Cover
CAUTION:
• Pay attention to the battery holder's (+) and (-) marks for proper
battery insertion.
• Batteries must be of the same type. Do not use a combination of
batteries whose remaining capacity differs.
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mark and remove it.
Rear View of LS6