Accurate and Reliable MeasurementDue to the unique construction of probe measurement, advanced infrared sensor and comprehensive calibration process, this forehead thermometer can offer highly accurate and reliable temperature measurement comparable to that of taken at the oral site with an ordinary digital thermometer. Multiple Readings RecordingUsers can record the last 20 readings by entering the Memory Tracker recall mode, enabling efficient history tracking and temperature variations. 2 AAA 1.5V batteries included. Suitable Medical UseThis infrared thermometer offers forehead or body temperature mode. The front of the thermometer has three buttons, the right button can switch between Fahrenheit () and Celsius () temperature at will; the left button can switch between human body and food temperature measurement; the front button is the measurement button. Fast and Non-Contact Temperature Measurement Equipped with precise sensor probes and optimized algorithm calculations, this baby thermometer can measure body or food temperature in 3 seconds. The non-contact design can provide a safe and hygienic measurement, it can be used even when the baby is sleeping. Ideal Functional DesignThis infrared thermometer is equipped with a fever warning indicator, a an LED display and five setting options. You can easily take your temperature at night. Fever warning indicator lets you know immediately if a fever is in play.