Simple to use and non-contact. The thermometer only needs one button to start. Once pressed, the easy to read LCD screen comes alive and after a quick self-check, the unit is ready. There will be a few beeps as the current time (if previously set) and a silhouette appears. From about an inch away, aim the thermometer at the forehead of the person and press Start. It will only take 2 to 3 seconds and a beep will sound once complete. While the temperature will stay on the display for recording, 10 memory slots are available to record the results as well. The date and time are also noted. If a temperature reading is below 100 degrees Fahrenheit, a happy face will appear next to the result. If the reading is above 100 degrees Fahrenheit, a sad face appears. The unit is ready to go as soon as you open the box. The battery and instruction guide is included. It will automatically shut off after 1 minute of inactivity.