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How to Set an Oregon Scientific Thermometer

Andrew Cockerham

Oregon Scientific manufactures several digital thermometer models, most of which allow you to see both an indoor temperature and an outdoor temperature read by a wireless sensor. Once you set up this sensor, the thermometer is easy to use, but the initial set-up can be daunting. Don't be discouraged, though. Once you get on the right track, your thermometer should give you years of faithful service. The directions in this article are for an Elements Indoor/Outdoor Thermometer with Ice Alert (Model #EW91), but the basic process is the same for most other Oregon Scientific thermometers.

Setting Up the Thermometer

Step 1

Remove the battery door, located on the back of the unit.

Step 2

Insert two new AAA batteries in the battery compartment, matching up the batteries' plus and minus signs with the battery compartments.

Step 3

Press the "Reset" button just above the batteries, and then select Celsius or Fahrenheit temperature readouts by sliding the adjacent switch to either "C" or "F."

Step 4

Replace the battery door.

Step 5

Find the "Channel" button above the battery door. Press it repeatedly until you have selected the channel you want your outdoor sensor to operate on (you can have up to three sensors, and each must operate on a different channel).

Setting Up the Outdoor Sensor

Step 1

Remove the battery door on the back of the sensor. Move the "Channel" switch to match the channel you selected on the main thermometer.

Step 2

Insert two new AAA batteries.

Step 3

Press the "Reset" button and replace the battery cover.

Step 4

Place the sensor indoors or outdoors within 100 feet of the main thermometer.