Klein Tools CL220 Manuel D'utilisation page 13

BATTERY REPLACEMENT
When indicator is displayed on LCD, batteries must be replaced.
1. Loosen captive screw and remove battery cover.
2. Replace 3 x AAA batteries (note proper polarity).
3. Replace battery cover and fasten screw securely. p
To avoid risk of electric shock, disconnect leads from any voltage
source before removing battery door.
To avoid risk of electric shock, do not operate meter while
battery door is removed.
MAINTENANCE
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