DIFFERENTIAL PRESSURE MANOMETER MAGNEHELIC PRESSURE MANOMETER; APPLICATION: COMPATIBLE AND NON-DIFFERENTIAL AIR AND GASES; FUELS.MAGNEHELIC RANGE; MEASURING RANGE: 2 – 0 – 2 POLKA2-0-2POLKA DWYER ; SUBDIVISION: 0.1/0.1 POLCAMODEL 2304; WORKING PRESSURE: -20” HG AT 15 PSIG.; PROCESS CONNECTION: 1/8 NPT FEMALE HIGH AND LOW IN DUPLICATE; DIAL DIAMETER: Ø105MM WITH BEZEL 120.65 MM; WORKING TEMPERATURE: -7 TO 60°C.; ACCURACY CLASS: ± 3% F.E. UP TO 21.1ºC.; SENSOR ELEMENT: SILICONE RUBBER DIAPHRAGM.; CONSTRUCTION: CAST ALUMINUM HOUSING.; HOT HAMMERED DARK GRAY FINISH.; TRANSPARENT PLASTIC DISPLAY.; WEIGHT: 510 GRAMS.; SUPPLIED WITH TWO PLUGS WITH 1/8” NPT THREAD, THREE ADAPTERS WITH SCREWS FOR FLUSH MOUNTING, TWO CONNECTORS WITH 1/8 NPT-M THREAD, HOSE NOZZLE, BEZEL RING AND USER MANUAL.; MODEL 2304 – FAB. : DWYER/USA.