BF60 thermal mass flow meters use the thermo-diffusion principle; the thermo-diffusiontechnology is one reliable high technology under the severe condition.  

   BF60 thermal mass flow meters is a direct mass flowmeter which measures gas, it does not need to make the temperature , pressurecompensation, it is a direct and simple and convenience mass flow meter. Itsatisfies the requests of the gas flow amount monitor, the flow measurement andthe self-verifying of instrument.