User Manual

9
8. Changing battery
Depending on which batteries or accumulators you use, the replacement interval can
be very different. High-quality alkaline batteries keep the longest, accumulators for
cheap zinc-carbon batteries require more frequent changing.
Combination sensor, outdoor sensor
When the display of the sensor concerned fails for more than 24 hours, the batteries are to be
replaced with new ones as described in section 7.
Check as whether there is possibly some disturbance in the radio transmission which
is the cause for the failure of the data transmission. In this case also, there will be no
indication in the display of the base station.
The cause could be, for example, a metal object in the radio path (e.g., a parked
vehicle).
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