* A single-use, disposable clinical thermometer pre-assembled in a sheath for use in measuring rectal body temperature * Clinically accurate rectal body temperature can be obtained in three minutes * Each dot changes color from tan to blue at a specific temperature relative to the melting point of the specific chemical mixture in the dot * Each dot changes color at a temperature of 0.2 degrees F higher than the preceding dot * Tempa-DOT PLUS thermometers are sensitive to environmental temperature - see storage conditions * Tempa-DOT Plus thermometers have a two-year shelf life