Expiration warning device of refrigerator

Abstract

An expiration warning device installed on a refrigerator includes a processor unit, a power source unit electrically connected to the processor unit, an operating unit electrically connected to the processor unit for setting a countdown of number of days, at least one display unit electrically connected to the processor unit for displaying the countdown of number of days, at least one switch unit electrically connected to processor unit for controlling the power source unit and the display unit, and at least one warning unit electrically connected to the processor unit and corresponding to the display unit for alerting the countdown of number of days. The processor unit, power source unit, operating unit, display unit, switch unit and warning unit are coupled to a casing and installed on the refrigerator for setting a countdown of expiration of related foods to remind users about the expiration in advance.

Dependencies are inferred from the claim text.