Baby Thermometers measures the human body or an object temperature based on the infrared energy emitted by the forehead or an object (such as milk and water). You can quickly get accurate measurement results after pointing the temperature probe to the target. The measuring range of the thermometer in forehead mode is between 32. 0°F - 212. 0°F (0 °C- 100 °C) . The product consists of ABS plastics, temperature sensor, Infrared temperature measuring element, microcomputer controlled circuit, LCD , backlight and buzzer. JUMPER Thermometer supports 20 previous readings recall, Non-Contact measuring, high temperature warning and so on. Under the accurate thermometer guard, people will not worry about physical discomfort. Packet Contents: 1 x JUMPER FR202 Infrared Thermometer 1 x Portable Case 1 x User Manual 2 x Battery (AAA) How to measure the forehead temperature In a power-off state, point the IR sensor to the center of the forehead. Move the thermometer towards the forehead. For effective measurement, the distance between the thermometer and the forehead must be ½” to 2” (1-5 cm). Press and release the Measure button. The forehead temperature will be displayed on the screen.