INTERNAL PRESSURE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an internal pressure display device constituted so as to perfectly eliminate the leak from the hole or the like of a container and the leak from a pressure gauge itself, because the display device is only pasted on the outer surface of the container without providing the hole or the like to the container. SOLUTION: The internal pressure display device comprises a strain gauge, a conversion part, a display 4 and a battery 5. This internal pressure display device is pasted on the outer surface of the container receiving internal pressure before being used.