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La Crosse Technology, Ltd. www.lacrossetechnology.com/support Page 3
For optimum 433MHz transmission, place the outdoor sensor no more than 300 feet (91 meters, open
air) from the forecast station.
See the section on mounting and distance/resistance/interference for details on mounting the outdoor
sensor.
Outdoor Temperature Sensor
Compatible Outdoor Sensors
The TX141TH-Bv2 outdoor sensor comes packaged with this forecast station.
The TX141TH-A and TX141TH-B (433MHz) outdoor sensors are compatible with this forecast station.
Quick Connect
Explanation: Use the quick connect for a forecast station and outdoor sensor that have been working but
lost connection due to interference or low batteries. This is not the same as a thorough factory reset.
1. Bring the outdoor sensor, forecast station together inside, and place the units 5-10 feet apart with
nothing between them.
2. Hold the SENSOR SEARCH button on the forecast station. The outdoor temperature area will flash.
3. Remove battery cover from the outdoor sensor and press and release the TX button to send the
signal.
4. Wait for 2 minutes for the outdoor temperature to appear on the forecast station.
Factory Restart: If the above procedure does not work, please try the factory reset.
Outdoor Temperature Signal Strength
Explanation: The forecast station will search for the outdoor temperature/humidity outdoor sensor for 3
minutes after batteries are installed or when the SENSOR SEARCH button is held for 3 seconds.
The antenna symbol will flash during reception.
The temperature display will be dashes “---“.
If synchronization fails once, the antenna will lose one bar.
If synchronization fails twice, the antenna will lose two bars.
If RF (radio frequency) reception fails five times, the antenna symbol will show without bars.
The antenna will show full display with successful RF (radio frequency) reception.
Dashes show for Outdoor Temperature
Explanation: Dashes mean the connection is lost between the forecast station and the outdoor sensor.
Batteries often resolve the connection.
Distance/Resistance can cause loss of connection between the outdoor sensor and the forecast
station.
Turn the forecast station 90 degrees towards the outdoor sensor to provide better reception. This
allows more antenna surface to face the outdoor sensor signal.
Try the quick connect or factory restart.
Power Requirements
2-AA batteries power the outdoor sensor.
We recommend Alkaline batteries for the outdoor sensor.
You may choose to use Lithium batteries for temperatures below -20°F/-28.8°C.
Inaccurate Outdoor Temperature Reading
Explanation: High outdoor temperature readings are generally a location issue. Low outdoor temperature
readings are power related or a sensors going bad.