Ear and forehead. The thermometer's design allows for temperature measurements in both the ear canal and on the forehead. Putting on and taking off the cap is sufficient to determine a method of measurement. Measurement within one second. Temperature measurement is instant and requires only one touch. Wide measurement range of 10 to 50 0C for body, air, and liquid temperature monitoring. Easy washing and disinfecting. Waterproof sensors are readily cleaned with disinfectant.