SHOWCASE

PURPOSE: The showcase is provided to inform the poor load or overload of the product within showcase to administrator in advance. CONSTITUTION: The showcase is comprises at least one shelf(10) in which the product is loaded, a cooling unit(30) producing a cool air supplied to the product loaded in the shelf, an air duct(50) moving the cool air generated through cooling unit, a cool air discharging part(70) discharging the cool air moved through the air duct to the air duct shelf, a cool air suction part(80) inhaling the cool air, which was discharged through the cool air discharging part, a ventilation fan(90) moving the cool air which is inhaled through the cool air suction part to the cooling unit again, a sensor for detecting quantity of light(100) measuring an incoming quantity of light from the cool air suction part, a suction sensor measuring the temperature of the cool air suction part, a control unit(400) judging the status of improper stowage or overload of loaded product in the shelf, an alarm part informing the improper stowage or overload of the product. [Reference numerals] (AA) Light