Digital Differential Pressure Gauge Differential Pressure Indicators Are Part Replacement For The Analog Magnahelic Gauges & Are Easy To Use With Clear 4 Digit Led Display. It Comes With Built In Sensor & Also A Buzzer Alarm With Acknowledgement Facility For Process Violation Alert. Salient Features Include Unit Conversion At The Press Of A Key Between mm.w.c. & Pascals, Integrated Buzzer Alarm For Set Point Violation, Offset Provision To Meet Audit Requirements, Analog 4-20ma Output, 30 mm. Depth For Clean Room Modular Wall Fitment & RS 485 Modbus Communication For BMS / SCADA / PLC Integration. Specifications: Pressure Measuring Range -10.0 to +10.0 mm.W.C./ -25.0 to +25.0 mm.W.C./ -50.0 to +50.0 mm.W.C. / 0.0 to +100.0 mm.W.C./ -100 to +100 Pascals/ -250 to +250 Pascals 0 to 10, 25, 50, 100, 200, 300, 500, 1000 Pascals (Any other range factory set as per customer specifications) Communication For BMS / SCADA / PLC Integration. Maximum Over Pressure: 2 Times The Rated Pressure Display : Integrated 4 Digit Red Led 7 Segment Display 0.5” High Sensor : Integrated High Speed Differential Pressure Sensor Resolution : 1 Pascals / 0.1 mm.w.c. Power : 24 Volts D.C. Typical Output : Optional 4–20 Ma Isolated Medium : Air Or Gases ( Non Corrosive ) Accuracy : +/- 0.5% Of Full Scale. Alarms : Built In Buzzer Alarm For Process Violation Alert Connection2 Nos. Hose Nipples Of 4mm. Stainless Steel At The Back Communication : Isolated Rs485 (optional) Size :Standard 4 ½ Inch. ( 114.3 mm.) Diameter as per Maganahelic Gauge Cutout with only 30 mm. Depth Construction : Aluminium Lm-6 Powder Coated Body With Flush Bezel Fitment, Water Splash Proof Polycarbonate Front Sticker. Weight 380 gms. Approx