Pressure Gauge Ma-40-145-R1/8-Psi-E-Rg with Display Unit In Psi, Adjustable Red/Green Range. Indicating Range (Psi)=0 - 145 Psi, Conforms to Standard=En 837-1, Nominal Size of Pressure Gauge=40, Design Structure=Bourdon-Tube Pressure Gauge, Mounting Type=Line Installation, Festo