The built-in piston is connected with the spring. When the pressure changes, the expansion and contraction of the spring will change accordingly. When the pressure reaches the set value, the preset mechanical structure will be triggered and a switch signal will be sent.
Compact structure, standard plug of solenoid valve, convenient connection and wide measuring range (0-400bar). High overload capacity (up to 1230bar), high repeatability, normally open or closed contacts, gold plated contacts, large contact capacity. It can be used to measure the pressure of water, oil and gas.