I have one - I just need to find itLooking for a Neptune Pm1 module to start monitoring my ORP. Let me know what
you have.
It is supposed to be between 300 and 450.I monitor orb, but I have no idea of what is a high or low number. 372-411 rises as the lights go down and lowers as they ramp up.
Sweet let me know if you find it. Def interested.I have one - I just need to find it