Hoffer Turbine Flowmeter Pottermeter for Helium Air Hydrogen
This is a Potter Aero (now Hoffer Flow Control) model 3-5858G turbine flowmeter. Please note that this sale does not include a magnetic pickup coil. These coils are available from Hoffer for $100 to $150 with a variety of available specifications. Recommended for use with gases such as helium, air, or hydrogen.