Brooks Instrument, Burkert Fluid Controls, Hoffer Flow Controls, Kessler - Ellis Products, TCS, Thermal Instrument, Universal Flow Monitors
- Positive displacement
- Ultrasonic
- Mag Flow
- Coriolis
- DP type (including orifice plates, averaging pitot, flow nozzles, venturi)
- Turbine
- Vortex
- Variable Area-rotameters
- Thermal mass meters and controllers
- Open channel
- Flow switches
- Flow computers (steam, chilled water, natural gas)
- Rate meters and totalizers
- Mechanical registers and printers
- Batchers
- Paddle Wheel