Sensor for measuring pressure of gas filter element

The utility model discloses a sensor for measuring pressure of a gas filter element. Wherein the shell consists of an upper shell and a lower shell; the pressure measuring device is arranged in the shell; an air inlet nozzle I and a socket are arranged on the upper shell; an air inlet nozzle II is arranged on the lower shell; the membranes are mutually buckled to form an air bag membrane group; one end of the air inlet pipe is communicated with the air inlet nozzle I; the other end of the air inlet pipe is communicated with a channel arranged in the air inlet joint; the other end of the channel is communicated with an air bag membrane set fixed to the lower end of an air inlet nozzle, a pushing column is fixed to the lower end of the air bag membrane set, a supporting plate is fixed into the lower shell, the air inlet nozzle is connected with the supporting plate through a supporting frame, a microswitch is arranged on the supporting plate, and a contact is connected with a socket through a wire. The filter e