Digital thermometers measure body temperature over a small temperature range centered around 37°C. Digital thermometers provide faster, more convenient measurements and also eliminate the environmental hazard of mercury in legacy thermometers. Probe and ear digital thermometers are the two most common types. Temple and forehead types are also available. The probe type is used in the same way as a traditional mercury stick thermometer and measures oral, rectal, or armpit temperatures. The ear type is a non-contact thermometer that measures the infrared energy radiated from the ear canal.
Digital Thermometer Block Diagram
