System design for Swissflow low pressure flowmeter (which display)

Hi everyone, I am designing a system where I need to measure flow in order to regulate it close to but not exceeding 0.5gpm. I already have the flow regulator I will use the McMaster-Carr precision flow adjustment valve 1/4 inch with a 0.51 max flow coefficient (https://www.mcmaster.com/46425K12/). In order to measure precisely the flow so I stay close to 0.5gpm I am considering using the Swissflow low pressure flowmeter, (https://www.daitron.com/sf-800) since it is the only reasonably affordable flow meter I could find that is able to measure flows under 3gpm. I am trying to keep the design as simple and affordable as possible. This will be an external standalone design. What display could I use with the Swissflow flowmeter in order to get a reading? Would the display be enough to get it to function? Am I over-engineering this? Is there a simpler solution for staying close-to but not exceeding 0.5gpm? TLDR: What display could I use with a sf-800 Swiss flow flowmeter? any feedback is appreciated 🙏