La Crosse Technology, Ltd.
Page 3
Outdoor Temperature Transmitter
Compatible Outdoor Transmitters
A TX38U-IT outdoor transmitter is compatible with this Temperature Station.
Power Requirements
2-AAA batteries power the outdoor transmitter.
We recommend alkaline batteries for the transmitter.
Dashes shown for Outdoor Temperature
Dashes means the connection is lost between the Temperature Station and the
outdoor transmitter.
Batteries often resolve the connection.
Distance/Resistance can cause loss of connection between the transmitter and
the Temperature Station.
Reorientation of the Temperature Station 90 degrees towards the outdoor
transmitter may provide better reception.
Complete a factory restart.
Inaccurate Outdoor Temperature Reading
The outdoor transmitter reads the environment. When mounted in the home it
will read inside temperature.
When the transmitter reads high during the day but not at night it is a
positioning problem.
Side-by-side test: Bring the outdoor transmitter in the house and place it next
to the Temperature Station for 2 hours.
Compare indoor and outdoor temperature. The temperatures should be within 4
degrees to be within tolerance.
If the transmitter reads correctly when next to the Temperature Station then try
a different location outside.
Look for heat sources such as sunlight, door or window frames, or reflected
heat.
Intermittent Outdoor Temperature
RF (radio frequency) communication may come and go occasionally. This can be
normal in some environments (e.g. moister climates). If transmitter signal is
lost, please wait 2-4 hours for the signal to reconnect on its own.
Move the outdoor transmitter to a closer location.
Freezer test: Confirm the Temperature Station is reading the correct outdoor
transmitter. Place the transmitter in the freezer for an hour and watch the
temperature drop on the Temperature Station.
Indoor distance test: Please complete the Restart with transmitter and
Temperature Station 5-10 feet apart and inside to establish a strong connection.
After 15 minutes if there is a reading in the outdoor temperature area, move the
transmitter to another room with one wall between the transmitter and the
