Provides visibility in the dark Last Reading on the Same Display with Current Reading Energy-saving Automatic Power Off Forehead Measurement Mode This mode displays the oral-equivalent value of the measured forehead temperature. This unit measures the temperature at the surface of the forehead by sensing infrared emission of the skin at the measured point, and then calculates the oral-equivalent value using a unique algorithm based on actual body temperature survey data. The unit will display the room temperature even after the power is off. Surface Measurement Mode Surface measurement mode shows the actual and unadjusted surface temperature of an object, which is different from the body temperature. This mode can help you determine if the object temperature is suitable for a patient or ba.