We recently bought some gas meters by EKM metering. They have some pretty fancy IOT style metering options for sale. We bought the EKM push and omnimeter pulse v.4

Helium gas meter installed to measure the gas flow. We can see which lab uses helium and it can log the data. Its good to know if a lab uses helium and make sure what is being sent from the lab also gets returned back to our system. 

please excuse my messy wiring. I used Circular power connectors From TE connectivity for the pulse wiring and the pressure guage sensor wires.