You should normally be getting reproducible results, or results within a few tenths of a degree of each other. However, a few things to know:
Multiple temperatures taken over the same area in rapid succession will ultimately cool the area causing differences.
If sweating, the temperature on the neck behind the ear lobe becomes the overriding temperature, and since this area is not quite as stable as the temporal artery, it can easily cooled be by the thermometer in taking multiple readings. Remember, the probe of thermometer will be at room temperature, and is about 30 degrees Fahrenheit (17 degrees Celsius) cooler than body temperature.
www.exergen.comRE: Exergen - TemporalScanner™ TAT-2000C
