Hunter HC Flow Meter, how to identify

Just installed Rachio 3 replacing a Hunter Hydrawise system. It used a Hunter HC Flow Meter which was working. I added it to the system and I can see that some kind of readings are taking place, but I don’t know if they are working (I assume not).

Going through calibration reported every single zone was too low flow, below 0.5 gpm, but I could see the gpm meter reading something like 0.13, so it wasn’t completely non-functional. All 10 zones are in fact drip line based so gpm is always going to be low. Thus, I don’t know if it’s working or not. I called it an Everydrop, but there are like 20 different selections. What is the “close enough” vendor/unit on this list that I can call this unit?