The thermometer is a device that measures temperature or temperature gradient using a variety of different principles. Thermometers that include an electronic device and attached sensors that detect and transduce changes in temperature into variations of some electric characteristic (e.g., resistance, voltage). These variations of the electric characteristics are processed in electronic circuits and, in turn, displayed as temperature readings.
TAT-2000C - Exergen
SureTemp Plus 690 - Welch Allyn
ThermoScan PRO 4000 - B. Braun/Welch Allyn