4
number of sensors which can be connected: max. 3
clock:
controlled by DCF radio signal
wireless sensor:
transmission frequency 433 MHz, max. 0.1 mW e.r.p.
Power Supply:
main unit (station):
2× 1.5 V AAA batteries (not included)
wireless sensor:
2× 1.5 V AAA batteries (not included)
Dimensions and Weight:
main unit (station):
50 × 140 × 105 mm; 118 g (without batteries)
sensor:
25 × 60 × 95 mm; 49 g (without batteries)
Operating Instructions
1. First, insert batteries into the weather station (2× 1.5 V AAA), then into the wireless sensor (2× 1.5 V
AAA). When inserting the batteries make sure the polarity is correct to avoid damaging the weather
station or sensor. Only use alkaline batteries of the same type; do not use rechargeable batteries.
2. Place the two units next to each other. The weather station will automatically detect the sensor
signal within 3 minutes. If the sensor signal is not detected, long press the CH button on the sta-
tion to repeat the search for sensor signal. If the outdoor temperature value disappears from the
display, repeat steps 1 and 2.
3. If you are using multiple sensors, you must set a communication channel number for each using
the CH button located in the battery compartment of the sensor.
4. We recommend placing the sensor on the north side of the house. The range of the sensor may
decrease substantially in areas with large number of obstacles. The sensor is resistant to dripping
water; however, it should not be exposed to sustained rain. Do not place the sensor on metal objects
as this reduces transmission range.
Radio Controlled Clock (DCF77)
After registering the wireless sensor, the weather station will automatically begin searching for DCF77 signal
for 10 minutes – the icon will be flashing. After detecting the DCF signal, the display will show the
icon.
No other data on the display will be updated and all buttons will be disabled during the search.
Signal detected – the icon stops flashing and the current time is displayed.
Signal not detected – the icon disappears. Long press the UP button to search for DCF77 signal again.
To cancel searching for DCF77 signal, again short press the UP button.
DCF signal will be synchronised daily between 2:00 and 3:00 am.
Note: If the weather station detects DCF signal but the current time on the display is incorrect (e.g.
shifted ±1 hour), you must always set the correct time zone for the country where you are using the
station, see Manual Setting of Time and Date.
In standard conditions (at safe distance from sources of interference, such as TV sets, computer mo-
nitors), the reception of time signal takes several minutes. If the weather station does not detect the
signal, follow these steps:
1. Move the weather station to another location and try to detect DCF signal again.
2. Check the distance of the clock from sources of interference (computer monitors or television sets).
It should be at least 1.5 to 2 m during the reception of the signal.
3. When receiving DCF signal, do not put the weather station in the proximity of metal doors, window
frames and other metal structures or objects (washing machines, dryers, refrigerators etc.).
4. In reinforced concrete structures (cellars, high-rise buildings etc.), the DCF signal reception is wea-
ker, depending on the conditions. In extreme cases, place the weather station close to a window
toward the transmitter.
Reception of the DCF77 radio signal is affected by the following factors:
• thick walls and insulation, basements and cellars,
• inadequate local geographical conditions (these are difficult to assess in advance),
• atmospheric disturbances, thunderstorms, electrical appliances with no interference elimination,
television sets and computers located near the DCF receiver.
