11.4. Frost warning
This function warns you, if the temperature for the sensor displayed in the
current display panel drops below 39.2˚F/+4˚C (see more in chapter 9.5). In
the current display panel the frost warning symbol (see above) appears.
12. Changing batteries
Depending on what type of batteries or rechargeable batteries
you use, the replacement interval can be very different. High-
quality alkaline batteries provide longest service, rechargeable
batteries or cheap zinc-carbon batteries require more frequent
changing.
12.1. Base station
If the battery flat symbol appears in the display (
), your batteries
need replacing.
• Always replace the whole set of batteries.
• Never mix new batteries with “used” batteries.
• Always use three batteries of the same type by the same
manufacturer.
• Do not mix batteries with rechargeable batteries.
• As already mentioned, you can use rechargeable batteries,
however, durability is appreciably lower than with batteries.
• Follow the instructions in chapter 7.1 to change the batteries.
Please observe the following:
After replacing the batteries, all data, values stored in the base
station (e.g. settings, min.-/max. data etc.) are deleted and
must be entered again.
12.2. Combination sensor, outdoor sensors, pool sensor
If you do not receive input from a sensor for more than 24 hours, replace the
batteries with new ones as described in the operating manual for the sensor.
Before changing the batteries, check whether radio interference
is causing the data transmission failure. There will be no read-
ings from the sensor at the base station in this case. This could
be caused by a metal object in the transmission path (e.g., a
parked vehicle).
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