ROSS DM2CNA88A21019 ROSS CONTROLS SAFETY EXHAUST DOUBLE VALVE, EXPLOSION PROOF DM2C SERIES SOLENOID CONTROLLED, DYNAMIC MONITORING, DYNAMIC MEMORY, STATUS INDICATOR, PORTS (In) 1-1/2, PORTS (Out) 2, NPT, Cv (In-Out) 22, Cv (Exh) 64, 24 VDC DIN