La Crosse Technology C75747-AU User manual

SET UP GUIDE
MODEL: C75747-AU
Wireless Weather Station

Power Up
2
1. Insert 2-AA batteries into your Outdoor Sensor.
2. Insert the USB Cord into a USB Power Adapter (not included), be sure
the adapter is securely plugged into a working outlet. Then insert the
Power Jack end into the back of the station.
Optional: Insert 2 AA batteries for backup.
3. Once the sensor is reading to your station, place it outside in a shaded
location to protect it from the sun’s heat.
Watch our sensor mounting video: bit.ly/th_sensor_mounting
• When operating with the USB Cord, press the LIGHT button to adjust the
backlight (4 brightness levels, plus an o option).
• When operating on battery power alone, press any button to light up the
display for 10 seconds.
Adjustable Backlight
Outdoor Sensor
TX141TH-Bv3
Weather Station
C75747-AU
AA
AA
AA
AA
AA

Settings Menu
1. Hold the SET button to enter the Settings Menu.
2. Use the +/- buttons to adjust values.
3. Press SET to confirm values and move to the next setting.
4. Press the LIGHT button at any time to save and exit.
Settings Menu Order:
• Language (English, Spanish, French, German)
• Beep ON/OFF
• 12HR/24HR Time Format
• Hour
• Minute
• Year
• Month
• Date
• Celsius/Fahrenheit
• Pressure: hPa / InHg
• Pressure Number setting
Language: The language selected in this menu will control other menu
items, as well as your full weekday readout.
Weekday: The Weekday will set automatically when your Year, Month, and
Date are set. 3

Please Note: Only the hour can be set.
LCD Display Brightness
Adjusting the LCD Display Brightness
Auto-Dim Settings
Press the LIGHT button to adjust the backlight intensity.
There are 4 brightness levels, plus an o option.
1.
2.
3.
4.
Hold the LIGHT button to enter
the Auto-Dim Settings Menu.
Program your display to automatically
dim during preselected times.
Press the +/- buttons to turn the
Auto-Dim feature on or o. Press
LIGHT to confirm.
Press the +/- buttons to adjust
the starting hour. Press LIGHT to
confirm.
Press the +/- buttons to adjust the
stopping hour. Press LIGHT to
confirm and exit.
The icon will appear on the LCD when the Auto-Dim feature activated.
4

5
The forecast icons use the station’s internal barometer to predict condi-
tions to come within the next 12 hours. The Snow Icon will show when
temperatures are below 0°C (32°F) and rain or storms are predicted.
Using relative humidity, these arrows will indicate your indoor comfort level.
A feature that can help keep your home safe and comfortable.
COMFORT LEVEL
40%RH to 75%RH26%RH to 39%RH
COMFORT LEVEL
COMFORT LEVEL
76%RH to 83%RH10%RH to 25%RH
COMFORT LEVEL
COMFORT LEVEL
84%RH to 99%RH
The sun icon will show in daylight hours and the moon icon will show
during nighttime hours if the forecast is for sunny or partly sunny.
FORECAST FORECAST
Indoor Comfort Level Indicator
Forecast
SUN SNOWT-STORMRAINCLOUDSPARTLY SUNNY
FORECAST FORECAST FORECAST
FORECAST FORECAST FORECAST

6
Seasonal Trees
The foliage scene in the
forecast section changes
seasonally. The dates are
pre-programmed.
Spring (Sept. 1st to Nov. 30th)Summer (Dec. 1st to Feb. 28th)
Fall (March 1st to May 31st)Winter (June 1st to August 31st)
Seasonal Foliage
Moon Phase
The moon phase is based on the Lunar Calendar and the year, month, and date
settings.
Small Waxing
Gibbous
New
Moon
Large Waxing
Gibbous
First
Quarter
Large Waxing
Crescent
Small Waxing
Crescent
Full
Moon
Small Waning
Crescent
Large Waning
Crescent
Last
Quarter
Small Waning
Gibbous
Large Waning
Gibbous

Pressure / Extra Sensor Area
Pressure
Your Relative Pressure reading will come from your station’s internal barometer.
Allow up to 10 days for automatic calibration. Or you can program your local
pressure value in the Settings Menu. The arrows on the left represent rising and
falling tendency.
Extra Sensors
The station can display extra data from three additional Temperature and
Humidity Sensors, as well as one Rain Sensor.
Pressure (default) Temperature/HumidityRain
Add Extra Sensors
1. Install batteries into your extra sensor(s).
Note: For Temp/Humidity sensors, be sure to select dierent channels (1,2,3)
before you insert batteries.
2. Hold the EXTRA button on the station until the Reception Indicator starts
to animate. This will start a search for your sensors.
3. Your sensor(s) should connect within the next few minutes. Press the EXTRA
button to cycle through Extra Sensor and Pressure data. The Auto Scroll Icon
will appear when activated.
7

8
Button Functions
ALERTS Hold to enter Alert Settings.
Alerts: Press to move to next item.
EXTRA Press to view Pressure or Extra Sensors (if added).
Hold to search for all sensors.
+ PLUS Settings: Press to increase values.
Alerts: Press to arm/disarm alerts.
SET Hold to enter Settings Menu.
Settings: Press to confirm and move forward.
 MINUS
Settings: Press to decrease values.
Alerts: Press to arm/disarm alerts.
History: Hold to reset History Records.
HISTORY Press to view History Records.
LIGHT Press to adjust backlight.
Hold to enter Auto Dim Settings.
ALERTS & LIGHT Hold to Factory Reset station.
Note: When programming your station, press or hold one button at a time.

9
Search for Outdoor Temperature
If you are seeing “NO” or dashes for your outdoor readings, please try the
following steps:
1. Hold the EXTRA button to search for your outdoor sensor. The Reception
Indicator will begin to animate.
2. If after 3 minutes the sensor still isn’t connected, bring the sensor inside
next to the display and remove power from both the sensor and station.
3. Press any button on the station 20 times and leave the parts sit for a few
moments with the power o.
4. Install a new set of alkaline batteries into the sensor, then into your
station. For additional help visit: bit.ly/basic_restart
5. If your outdoor data is still not appearing after these steps, please
contact our support sta via the links below.
Low Battery Indicator
Low battery by Outdoor Temperature, replace batteries in the TH sensor.
Low Battery by Indoor Temperature, replace batteries in station.
Low Battery in the Extra Area, replace batteries in sensor that shows.

10
Stay in Touch
Follow La Crosse Technology on YouTube,
Twitter, Facebook and Instgram.
Ask questions, watch setup videos, and
provide feedback on our social media outlets.
Care + Maintanence
Do not mix old and new batteries.
Do not mix Alkaline, Lithium, standard, or
rechargeable batteries.
Always purchase the correct size and grade of
battery most suitable for intended use.
Clean the battery contacts and also those of the
device prior to battery installation.
Ensure the batteries have been installed with
correct polarity (+/-).
Remove batteries from equipment that will not to
be used for an extended period.
Promptly remove expired batteries.
Specifications
Weather Station (C75747-AU)
Temperature Range: 0°C to 50°C
(32°F to 122°F)
Humidity Range: 10% - 99% RH
Relative Pressure Range: 800 to 1100 hPa
(23.62 to 32.48 inHg)
Power Requirements:
USB Power Cord (USB180-P11B) (included)
Input: 5.0VDC 0.6A~1.5A
Dimensions: 22.8cm L x 2.9cm W x 13.8cm H
(8.98” L x 1.14” W x 5.43” H)
Outdoor Sensor (TX141TH-Bv3)
Temperature Range: -40°C to 60°C
(-40°F to 140°F)
Humidity Range: 10% - 99% RH
Transmission Range: Over 100 meters
(330 feet) in open air RF 433MHz
Update Interval: About every 51 seconds
Power: 2-AA, IEC, LR6 batteries (included)
Battery Life: Over 12 months
Dimensions: 4.0cm L x 2.0cm W x 13.0 H cm
(1.57” L x 0.79” W x 5.12” H)
Designed in La Crosse, Wisconsin •Made in China •Printed in China •DC 060121
Please help in the preservation of
the environment and return used
batteries to an authorized depot.