20 | Page
WHAT DOES A READING OF “HI” OR “LO” MEAN?
• If your outdoor temperature reading shows “HI” or “LO”, check that your batteries are good.
• 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 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.
• 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 interference.
WHY AM I GOING THROUGH BATTERIES QUICKLY?
• Test a new set of batteries. Write down the date of installation and the voltage of the
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.
HOW DO I CHANGE BETWEEN FAHRENHEIT AND CELSIUS?
• On your sensor, open the battery cover and press the F/C button. This will change the
temperature display on the sensor only.