La Crosse Technology, Ltd.
Page 4
THERMOHYGRO SENSOR
DASHES SHOWN FOR OUTDOOR TEMPERATURE/HUMIDITY
Dashes means there is lost connection between the display and the outdoor
sensor.
Batteries are the most common problem.
Distance/Resistance can cause loss of sensor signal. Avoid having more than
one wall, window, tree etc., between the display and the sensor. UV coated
windows may actually reflect the signal. Stucco walls will absorb the signal.
It may be helpful to orient the weather 90 degrees towards the sensor for better
reception.
Sensors operate best when elevated at least 6 feet.
Remove the batteries from the sensor for 2 minutes. Replace the batteries in the
Thermohygro sensor and after 5 minutes press and hold the TEMP button for 5
seconds. Wait 10 minutes. If the unit does not receive a reading from all the
sensors, please try the factory reset.
INACCURATE OUTDOOR TEMPERATURE/HUMIDITY
The thermo-hygro sensor reads the environment. When the sensor reads high
during the day but not at night it is a mounting problem.
Side-by-side test: Bring the thermo-hygro sensor in the house and place it
next to the Wind speed station for 2 hours.
Compare indoor and outdoor temperature. The temperatures should be within 4
degrees to be within tolerance. The humidity should be within 14% to be within
tolerance.
If the sensor reads correctly when next to the wind speed station then try a
different location outside.
Look for heat sources such as sunlight, door or window frames, or reflected
heat.
OUTDOOR READINGS ARE STUCK OR OFL
Check batteries. Overpowered or underpowered batteries can cause this
reading.
Replace sensor.
INTERMITTENT SENSOR READINGS
RF (radio frequency) communication may come and go occasionally. This can be
normal in some environments (e.g. moister climates).
If a sensor goes out, please wait 2-4 hours for it to reconnect on its own. Please
be patience – these stations can reconnect on, after many hours out.
RF (radio frequency) communication is not always 100% on.
Certain temporary conditions can cause it to go out for a time (e.g. 100%
humidity).
If a miss happens:
Hold the TEMP button for 5 seconds to search for sensor.
