Operation Manual

20. Transmission Range
The transmission distance from the thermo-hygro sensor to
the base station in open space under optimum conditions is
100 meters. Although the signal transmission may travel
though solid surfaces or objects, the following points should
be avoided if possible:
- High frequency interferences of any kind.
- Constructions of any kind or trees.
- The distance of transmitter and receiver to conducting
planes or object (including the human body or the
ground) does influence the transmission characteristics
and thus the transmission distance.
- Broadband interferences in municipal areas can reach
levels reducing the signal/noise ratio over the entire fre-
quency band, thus also reducing the transmission dis-
tance.
- Devices working close by (example a neighbor’s house)
may also influence reception.
- Poorly shielded PCs can cause interferences that will
reduce or in some cases stop reception
21. Cleaning and Maintenance
- Clean the housing and screen of the base station only
with a soft damp cloth. Do not use abrasives or solvents.
- Ensure that the rain sensor does not collect leaves or
other dirt by checking the funnel for blockages every now
and then. Also clean the seesaw of the sensor with a
damp cloth and check by lightly tapping with your finger
that it can move freely from side to side.
- Do not clean the funnel with the bottom half of the rain
sensor attached nor the bottom part itself under running
water. This may bear the danger of water entering the
unit’s inner parts and cause damages.
- Do not immerse the base station in water.
- Should there be damage to this product, please do not
attempt to make any repairs. Please take this unit to a
qualified technician. Opening or improper handling of the
units will invalidate any guarantee.
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