Fahrenheit version: Hold down the button. Initially 188.8 is displayed in the window, followed by Lo and then 98.6, followed again by Lo, and then a blinking F. The thermometer is now ready for use. When the reading is complete the thermometer emits a beep, the process takes 20–25 seconds.
To switch off: Hold down the button to switch off the device and save the battery. If this is not done the thermometer switches itself off automatically within approximately 8 minutes.
Cleaning: Wash off the thermometer with soap and lukewarm water. Avoid immersing the entire device in water.
The thermometer was developed by Safehorse of Sweden AB.