You searched for "patch sensor"
SMC
SMC Contact (Reed Switch) Pressure Switch, Rc 1/8 1bar to 6 bar
Part: IS10-01-6L
Reed-switch pressure sensor for reliable contact-based pressure detection in air systems.
SMC
SMC Pressure Switch, Rc 1/8 0.7 MPa
Part: IS10-01S-6L
SMC pneumatic pressure switch for air systems, detects 0.7 MPa pressure changes.