The Teledyne Hastings HFM-200 is a general purpose series of mass flow meters and controllers. Featuring reliability and stability, the 200 Series is chosen by OEM's for its very stable performance with varying ambient conditions. A wide choice of elastomer seals make this flow controller compatible with most gases. The HFM-200 meters and controllers have flow ranges from 0-10 sccm to flows of 0-25 slm; provide analog outputs, are constructed of stainless steel and have normally closed valves. The full scale range is specified by the end user. A NIST traceable calibration certificate is standard. Many corrosive gases and pressures up to 1000 psig are easily measured. Cleaning for oxygen service is available.