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A Operating Instructions
2.
Battery charge and changing the batteries
2.1
Battery charge
Approximately 2 weeks before the batteries run down you will see
a battery symbol on the display. The batteries should now be
changed.
Battery type: C, 1.5 V, IEC designation LR 14
Battery symbol
Important: If the battery is not changed, the battery symbol starts
flashing. From that moment on the unit can only be used a few
times and after that it will no longer open.
Note: We do not recommend using rechargeable batteries.
A Operating Instructions
Only use high-quality alkaline batteries.
Batterie - Symbol
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