I’ve used googles Ai to “design” me the node red code to take the dry pulsed outputs from a Vector Instruments anemometer and their resistive wind vane with great sucess. The process required for your application is similar.
I’ve just asked it your question and it looks quite a trival task, especially as you already look to have the optional modular pulse transmitter, the IZAR PULSE i
Installed the water meter sensor today via the USB GX IO-Extender 150.
This was because the Easysolar Installed in this project, whilst having inbuilt GX does not have full capability including digital inputs or relays as a Cerbo or Ekrano has
For similar off-grid applications, and future projects, I would recommended separate Inverter, MPPT and GX device rather than an Easysolar, as the limited GX functionality is a bit of a disappointment.