PRIMUS 400020 Chamber Pressure Gauge -30-+60 PSI Back Mounted -12413

The PRIMUS 400020 is a back-mounted chamber pressure gauge calibrated for -30 to +60 PSI range. It is used in anesthesia delivery systems and other medical gas applications where chamber or reservoir pressure monitoring is required. The gauge attaches directly to the rear of the chamber assembly and provides visual indication of internal pressure during operation.