oPerating instruCtions
item no. 1170968 / Version 05/14
Wireless base station eFWs 401
intended use
The product displays the inside and outside temperature and the time of day. An alarm function is
also integrated. Graphic symbols are used to display a weather forecast for the next 12 - 24 hours.
The measurement values of the outdoor sensor are transmitted wirelessly to the base station.
The product is battery-operated.
Any use other than described above may damage the product, there may also be other dangers.
Read these operating instructions completely and carefully as they contain very important infor-
mation about installation, operation and handling. Always observe the safety instructions and all
other information included in these operating instructions.
PaCKage Contents
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Base station
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Outdoor sensor
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Operating Instructions
eXPlanation oF sYmbols
m
This symbol indicates specific risks associated with handling, function and use.
The “Hand” symbol indicates special tips and operating information.
saFetY instruCtions
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the warranty will be void in the event of damage caused by failure to observe these
safety instructions! We do not assume any liability for any resulting damage!
nor do we assume any liability for material and personal damage caused by improper
use or non-compliance with the safety instructions! in such cases, the warranty will
be null and void.
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For safety and licensing (CE) reasons, unauthorised conversion and/or modifications of the
product are not permitted. Never open/dismantle it (except as described in this manual for
inserting/changing the batteries).
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Do not use this product in hospitals or medical institutions. Although the outdoor sensor emits
only relatively weak radio signals, these may lead to the malfunction of life-support systems.
The same may also apply to other areas.
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The manufacturer does not accept any responsibility for incorrect displays, measurements or
weather forecasts or the consequences which might arise from this.
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The product is intended for private use and not suited for medical purposes or informing the
public.
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The product is not a toy and should be kept out of the reach of children. The product contains
small parts, glass (display) and batteries. Position the product so it is out of the reach of chil-
dren.
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The base station is only suitable for dry, enclosed indoor areas. Do not expose to direct sun-
light, strong heat, cold, humidity or moisture; otherwise it may be damaged.
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The outdoor sensor is suitable for use in protected outdoor areas. It must not be used in or
under water, this will destroy it.
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Do not leave the packaging materials unattended. They may become dangerous playthings for
children.
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If the product is brought from a cold into a warm room (e.g. during transport), condensation
may develop. This could damage the product. Wait until the product has reached room tem-
perature before using it. This may take several hours.
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Handle the product with care; it can be damaged by impacts, blows, or accidental drops, even
from a low height.
notes on batteries and reCHargeable batteries
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Batteries/rechargeable batteries do not belong in the hands of children.
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Check that the polarity is correct when inserting the batteries/rechargeable batteries (pay
attention to plus/+ and minus/-).
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Do not leave batteries/rechargeable batteries lying around; there is a risk of them being swal-
lowed by children or pets. If they are swallowed, consult a doctor immediately.
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Leaking or damaged batteries/rechargeable batteries in contact with the skin can cause acid
burns; therefore, use suitable safety gloves.
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Liquids leaking from batteries/rechargeable batteries are very chemically aggressive. Objects
or surfaces coming into contact with these liquids might be considerably damaged. Thus, store
batteries/rechargeable batteries in a suitable location.
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Ensure that batteries/rechargeable batteries are not short-circuited, dismantled or thrown
into a fire. There is a risk of explosion!
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Do not recharge normal, non-rechargeable batteries. There is a risk of explosion! Charge only
rechargeable batteries that are intended for this purpose; use a suitable battery charger.
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If not used for a long period (e.g. in case of storage), remove the inserted batteries. Old bat-
teries/rechargeable batteries can leak and cause damages on the product; loss of guarantee/
warranty!
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Always exchange the entire set of batteries, only use batteries of the same type and by the
same manufacturer with the same charge status (do not mix full with semi-full or empty bat-
teries).
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Never mix batteries with rechargeable batteries. Use either batteries or rechargeable batter-
ies.
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For the proper disposal of (rechargeable) batteries, please read the chapter “Disposal“.
Controls
5
8
6
18
1
2
3
4
7
9
10
11
12
13
14
15
16
17
20
21
22
23
19
1
Display for weather forecast of the next 12 - 24 hours
2 Number of outdoor sensor (channel)
3 Display for outdoor temperature
4 Display for indoor temperature
5 Display for time/alarm
6 Reception symbol for radio signal of the outdoor sensor
7 Bell symbol (appears when alarm function is activated)
8 Reception symbol for DCF signal
9 “ALARM SET” button
10 “CH +” button
11 Slide switch to select between °C and °F temperature units
12 “SENSOR” button
13 “SNOOZE/LIGHT” button
14 “DISPLAY SET” button
15 “MEM -” button
16 “RESET” button
17 “RCC” button
18 Battery compartment
19 LED for transmission (illuminated when measurement values are transmitted)
20 “RESET” button
21 Openings for wall mounting
22 Slide switch to set the transmission channel
23 Battery compartment
getting started
Operating the base station and the outdoor sensor with rechargeable batteries is pos-
sible. However, the operating time and the display contrast are reduced by the lower
voltage (battery = 1.5V, rechargeable battery = 1.2V). Rechargeable batteries are very
sensitive to cold, therefore, the service life of the outdoor sensor decreases further dur-
ing the winter.
We recommend therefore to operate both, the base station and the outdoor sensor with
high-quality alkaline batteries to ensure long and reliable operation.
a) inserting batteries into the outdoor sensor
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Open the battery compartment on the back of the outdoor sensor by sliding its cover off down-
wards.
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Set the transmission channel (1, 2 or 3) using the slide switch (22). If you are only using the
individual outdoor sensor included, select channel 1.
If you are using more than one outdoor sensor (up to 3 sensors can be linked to the base sta-
tion), each outdoor sensor must be linked to a different channel.
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Insert two batteries of type AA/mignon with correct polarity into the battery compartment
(23) (observe po and negative/-).
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Briefly press the “RESET“ button (20).
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Close the battery compartment again.
