Oasis Instruments Company manufactures Glass Tube Rotameter with High and Low Flow Alarms. Oasis Instruments Company also manufactures control for Indian Railways and Indian Defence. The Glass Tube Rotameter with High and Low Flow Alarms is suitable for online installation with flanged or screw connection. The Glass Tube Rotameter with High and Low Flow Alarms is available in sizes ranging from 15 NB to 100 NB. This Rotameter has pressure ranges of 2.5 to 40000 LPH of water at ambient temperature and 0.1 to 750 Nm 3/hr of air at NTP. This Rotameter has accuracy of +2% of FSD.