PURPOSE: To provide a weight measuring and displaying in which a residual amount of each liquid in a container is discriminated clearly at a glance by observing display of a residual amount display section so as to grasp the residual amount of each liquid in the container in real time and to predict a replacement time of the container thereby replacing the container efficiently.

CONSTITUTION: A sensor output processing section conduct various judgement based on signals from plural weight sensors 1-1, 1-2, 1-3, 1-4, 1-5 and 1-6, a residual amount of a liquid in each container is displayed on a residual amount display section 3 and the residual amount of the liquid in the container is clearly discriminated at a glance by observing the indication of the residual amount display section 3.