DIGITAL PRESSURE GAUGE

PROBLEM TO BE SOLVED: To make easily and accurately conformable the setting point of a pressure switch by motoring the signal of the pressure switch by a built-in CPU, and registering pressure data when the signal changes in an internal memory. SOLUTION: The digital pressure gauge 1 for measuring industrial instrumentation pressure has, for example, a terminal 4 for inputting a signal from a pressure switch 6, and is constituted so as to display state by monitoring a pressure switch output signal 7 by a CPU built in the digital pressure gauge 1. When the pressure gauge 1 is turned on by a switch 5, the CPU starts sampling of the pressure switch output signal 7, and when obtaining data different from the last gathered data, the data is stored in a memory of the CPU. Memorized information is read out by a prescribed key of the switch 5, and the memorized information and a memorized pressure value are displayed, for example, on a display part when the pressure switch output signal 7 becomes either of ON and OFF.