How Do You Reset an Acurite Indoor Outdoor Thermometer? 5-Easy Steps!

Many people have problems with the Acurite digital thermometer, especially when it comes to resetting it. The resetting process is necessary in order for the device to work properly.

It is also important to note that the resetting process differs from device to device, so your thermometer model might require a different method.

There are several ways to do it, below we will discuss that. Although Acurite recommends using their official reset tool, sometimes the other methods work just as well.

I’ve finally discovered exactly how to do it and thought I would share this with everyone so they can fix their temperate as well.

This article shows how you can reset an Acurite indoor outdoor thermometer by yourself.

How Do You Reset an Acurite Indoor Outdoor Thermometer?

If you want to reset your indoor-outdoor Acurite thermometer Here is the step-by-step guide:

  • Step 1

    Turn off your thermometer base unit. Ensure that it is switched off or that you have removed the batteries before attempting to reset the instrument.

  • Step 2

    Press and hold the “MODE” button on the back of your thermometer. Be sure that you hold it down until all the digits on the screen start to flash. Once this happens, release the “MODE” button. You should see numbers flashing all over your screen now, don’t panic – these are just zeroes.

  • Step 3

    Once this happens, press the “MODE” button once more and keep it held down. Wait for a single beep to sound, followed by another number flashing on the screen.
    This is your corrected temperature reading and should be correct now. If you notice that this new reading still isn’t right, repeat this process.

  • Step 4

    Press the “SET” button to put your thermometer back into normal operating mode.

  • Step 5

    Once you are finished, press the “MODE” button until your home temperature display appears. This will let you know that everything is working as it should be now.


The reset process does not always work. If you have tried the steps above and didn’t succeed, try to replace the batteries with a brand that has a higher mAh rating. Certain models require a lower voltage than others, so if your model requires less voltage than another one it will not activate properly.

Where Should I Mount My Indoor-Outdoor Temperature Sensor?

While setting up your Acurite digital thermometer you’ll notice that there are different options for mounting the indoor-outdoor temperature sensor.

The indoor-outdoor temperature sensor should ideally be placed as close to the center of the room, as far from the heating and cooling systems as possible.

To measure the correct temperature, Don’t forget that nothing is blocking the path between the indoor-outdoor temperature sensor and your thermometer base unit (where you will keep it plugged in).

Do not plug the base unit right next to the indoor-outdoor temperature sensor, as this may cause a false reading. You should also avoid placing it under direct sunlight, which will result in a high-temperature reading.

If you want to program your Acurite digital thermometer, make sure that it is plugged in. This way the screen will light up and you can begin to set it accordingly.

Once you’re done setting up your device, make sure that it’s placed in an area where there is no danger of water damage (such as near a pool, sink, or bathroom). Leaving it in the rain is fine, however.

At this point, you’re ready to read the temperature on your Acurite digital thermometer. Note that if you keep getting bad readings, try recalibrating your device first.

If the problem persists even after calibration, consider replacing your batteries with higher mAh ones.

When Should I Reset My Acurite Indoor Outdoor Thermometer?

You should reset your Acurite indoor and outdoor thermometer when the readings start to display incorrect information.

If you do not need to reset it, there is no reason for doing so because it will continue working without issues.

Keep your Acurite indoor/outdoor Acurite thermometer out of direct sunlight if the temperature is too high.

This way, it won’t pick up the temperature of the sun and display it as an incorrect reading. If you’re unsure about this, plug it in next to the indoor-outdoor temperature sensor (not touching it).

It’s also wise to make sure that your indoor/outdoor Acurite thermometer is not near any heating or cooling vents.

This will create a similar effect as the sunlight, resulting in an incorrect reading (in this case, too low). As mentioned before, place it close to the center of the room and away from sources of heat.

Turn the indoor-outdoor temperature sensor around to check for any obvious signs of damage, such as cracks or missing parts.

If there are no physical problems with the device itself you will need to reset your thermometer.

Final Thoughts!

Acurite sensors are a great option for home use, especially if you want to make use of a digital thermometer.

However, there may be times when you will need to reset your device to get optimal readings once again.

Although there are several brands of indoor-outdoor thermometers out there, Acurite is a reliable brand.

Their products offer high quality and excellent precision, which will help you monitor the temperature without getting bad readings.

If you’ve checked the thermometer and everything is working as it should, consider replacing your batteries.

If your Acurite digital thermometer is giving you weird results, follow the simple steps above to recalibrate it and get accurate readings.

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