R.R. Flowmeters Pvt. Ltd manufactures Thermal Mass Flowmeters. The Thermal Mass Flowmeters manufactured by R.R. Flowmeters Pvt. Ltd are very small and fragile and consist of a heated and thin wire element. It consists of hot-wire anemometers. The hot-wire anemometers have a quick response time, due to small and thin size. However, the fragility makes the Thermal Mass Flowmeters unsuitable for industrial environments.