The Telemecanique XMJ-A091 is an electromechanical pressure switch with a low-pressure operating range starting at 3.19 PSI (0.22 bar) and going up to 14.5 PSI (1 bar). It is manufactured by Schneider Electric/Telemecanique and is currently listed as discontinued by the manufacturer.
Pressure Range: 3.19 to 14.5 PSI (22 to 100 kPa, or 0.22 to 1 bar)
Fluid Connection: G 1/4 threaded port
Protection Rating: IP66 (dust-tight and water-resistant)