Unit-Kinetics-Celerity UFM 5301August 24, 2012|Mass Flow Controllers, Unit-Kinetics-Celerity Home » Mass Flow Controllers » Unit-Kinetics-Celerity » Unit-Kinetics-Celerity UFM 5301 Coastal Instruments services a wide range of Unit-Kinetics-Celerity mass flow controller models. The Unit-Kinetics-Celerity UFM 5301 is among the mass flow controller products that we service.