Thermometers like this include the basic digital thermometers by Vicks, Walgreens, Omron, and more.
Rather than a blinking °F, your thermometer may display the phrase “F-SET” to show you’ve changed modes. If your thermometer flashes a °C or reads out “C-SET,” you’ve switched into Celsius. Repeat the process and it will switch back.
HoMedics, Equate, and other electronic thermometer manufacturers include labeled settings buttons on their products.
You’ll know you’re in the temperature settings when the °C on the screen begins to flash or changes to an °F.
To know whether you’re in the temperature unit settings, check the screen. The current unit will be flashing. Change it by pushing the arrow keys. For some infrared thermometers produced by Klein Tools, Beurer, and other manufacturers, the settings button won’t change the temperature unit. Instead, that button is used to set warning alarms, degree variation, and other modes. The temperature unit controls are in the battery compartment.
If the battery compartment cover is too tight, slide the tip of a flathead screwdriver in the space between the cover in the handle. Then, wiggle the screwdriver enough to pop the compartment open. Don’t push too hard so that that screwdriver doesn’t break the plastic or come in contact with the batteries.
