Its robust plastic housing resists heat cycles and prevents diaphragm fatigue

a pressure switch error code

Field Adjustable Range: Wide 0

"no flame" error codes on the diagnostic board

Built with corrosion-resistant stainless steel cores

MAMAC Systems PR-275-R4-VDC Pressure Sensor R-407C Its robust plastic housing resistsThe MAMAC Systems PR 275 R4 VDC is a professional grade low pressure sensor designed for precise monitoring of building automation and HVAC systems. Built with a 100% solid state, micro machined glass on silicon (Gl Si) capacitance sensor, this unit effectively eliminates common field issues like calibration drift and non linearity. This specific R4 configuration provides unmatched versatilely for technicians, offering multiple field selectable