What Does A Reading Of "Hi" Or "Lo" Mean; Temp Intermittant: Why Does My Temp/Humidity Reading Come And Go; Why Am I Going Through Batteries Quickly - La Crosse Technology V21-WTH General Information Manual

• Look for heat sources such as sunlight, door or window frames, or reflected heat that may
cause inaccurate readings.
• Press and release the SENSOR button to view the thermos-hygro sensor ID number.
Compare to the barcode on your sensor to be sure they match.
• If your temperature is reading low, and location is not an issue, you may have a bad sensor.

WHAT DOES A READING OF "HI" OR "LO" MEAN?

• If your outdoor temperature reading shows "HI" or "LO", check that your
• Overpower or underpowered batteries can cause this reading.
• If batteries are good, replace the outdoor sensor.
• If your temperature is fine but your humidity is reading "HI" or "LO" or dashes, your humidity
may be below 10% Relative Humidity. Your sensor does not read below 10% humidity.

TEMP INTERMITTANT: WHY DOES MY TEMP/HUMIDITY READING COME AND GO?

• 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 patient
– 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:
• If sensor loses connection to the station for any reason, the station will show dashes after 30
minutes.
• The station will search for 5 minutes every hour to reconnect with sensor.
• Be sure you have good batteries. Manually search for your sensor by holding the SENSOR
button for three seconds.
Try this:
• Bring your sensor within 10 feet of your station and make sure it is connected to the station.
• After 15 minutes move the sensor into the next room with a wall between the sensor and the
station for 1 hour.
• If there is no loss of signal in that hour, move the sensor just outside.
• Continue moving the sensor back to its original location.
• If you lose connection, look for sources of

WHY AM I GOING THROUGH BATTERIES QUICKLY?

• Test a new set of
batteries.
• When the batteries fail, please note the date and voltage again. This is helpful in determining
the problem.
• Check for leaking batteries, which may damage the sensor.
batteries. Write down the date of installation and the voltage of the
interference.
batteries are good.
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