Digital Differential Pressure Gauges are digital readout monitors intended for estimating the room pressure inside Pharma clean rooms, isolation rooms&hospital operation theaters. This advanced gauge comes with 0.5% accuracy, capable of nonstop measurement.Features Include: Unit change at the Press of a Key Between mm.W.C. and Pascal’s, Integrated Buzzer Alarm for Set Point Violation, Offset Provision to Meet Audit Requirements, Analog 4-20ma Output, 30 mm. Profundity for Clean Room Modular Wall Fitment and RS 485 Modbus Communication For BMS/SCADA/PLC Integration.