How to use the W_FLOW header on the z790 hero? + general advice solicited

Hey,

I posted about this on the ASUS sub as well, but realized this might be a more appropriate sub.

I'm building my first custom loop. I'm a complete noob at this, so I'm looking for some advice/comments. I'm more or less just using EK components.

I bought the z790 hero MB, and see it has a W\_FLOW header for monitoring water flow. If I understood correctly, I can hook this up with a flow sensor. I'm just wondering what I can use here, because the sensor from EK for example, says it needs the EK flow control unit (which renders the W\_FLOW header on the MB pointless?).

I'll be using the EK-Loop Connect - Temperature plug sensor for one of the temp headers, which if I understood correctly should work fine with either of the temp headers on the MB. No control unit mentioned for this one. One sensor here should also be fine, as the temperature of the loop should equalize (so idk why there's two temp headers, IN/OUT, but eh. Maybe someone can enlighten me).

Lastly for pump/reservoir I'll be using the EK-Quantum Kinetic D5 pump/reservoir combo, which if I understood correctly can just be plugged into the W\_PUMP+ header.

I'll have the ek monoblock for the board/cpu (13900k), and a block for my GPU (4090 suprim). I'll also be running two radiators (ek s420 at the top of my case, and p480m at the side. Case is the HAF 700 Evo). Which should be enough to keep the temps under control for those components according to the ek calculator/planner thingie.

Anything I'm missing or that I should be aware of?

Thanks