La Crosse Technology 450 - Manual (Page 3)

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ALTITUDE SETTING
After inserting batteries or adapter, the main unit will enter altitude setting mode directly.
Press “▲” or “▼” to select pressure unit in hPa, mb or inHg. Press “PRESSURE” to confirm.
Then press “▲” or “▼” to enter your current altitude in meter or feet. Press “PRESSURE”
to confirm and exit the setting. This allows the unit to provide a more accurate barometric
pressure & weather forecast reading. (For more information, see “WEATHER FORECAST &
BAROMETRIC PRESSURE” section)
SETTING UP THE WIRELESS THERMO-HYGROMETER:
• For the first installation, always turn on the home unit and then the remote sensor. Set
Channel 1 for the first remote sensor. Set channel 2 and channel 3 for the 2nd and 3rd
sensor.
• Press and hold CHANNEL button on main unit until a beep is sound to search for remote
sensor.
• Press the TX button on the back of remote sensor to transmit RF signal.
• When RF connection is established, the respective temperature & humidity of the selected
channel will appear on the main unit.
ATOMIC CLOCK
The unit will start synchronizing the clock after battery/adapter installation or reset. In normal
mode, press “ “ on the back of the display, to enforce searching of atomic clock signal. The
antenna icon will appear during synchronization, if the icon disappears afterwards, atomic
time signal is not available at the moment. Try other locations later. Place the unit away from
source of interference such as mobile phones, appliances, TV etc. Place the front or back of
the unit toward Colorado for best signal reception.
Antenna icon with full signal strength will appear on screen if the reception of atomic time
is successful. The atomic clock will have a daily synchronization at 02:03 and 03:03 everyday.
Each reception cycle is minimum 2.5 minutes and maximum 10 minutes.
WEATHER FORECAST & BAROMETRIC PRESSURE
The unit predicts weather condition of the next 12 – 24 hours based on the change of
atmospheric pressure. Allow 48-60 hours after set up for the unit to acclimate to your
environment. The coverage area is around 18.5 – 31 miles. The weather forecast is based
on atmospheric pressure change and is about 70-75% correct. As weather conditions cannot
be 100% correctly forecasted, we cannot be responsible for any loss caused by an incorrect
forecast.
SUNNY PARTLY CLOUDY CLOUDY RAINY STORMY
The current weather forecast is the one highlighted by a black-outlined square box.
To obtain an accurate weather forecast & barometric pressure reading, you need to input your
current altitude. After the reset of the unit, it will enter altitude setting mode. Press “▲” or “▼”
to set the pressure unit in hPa, mb or inHg. Press “PRESSURE” to confirm. Then enter your
current altitude in meter or feet. Press “PRESSURE” to confirm and exit the setting. You can
also hold “PRESSURE” button to enter altitude setting mode during normal use.
Press PRESSURE button to select pressure unit between hPa, inHg & mb.
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