Thanks for the advice. Tried all of that. The heater and probe was pretty isolated as I have it in a new build with minimal equipment at this time.is there a way to set in Celsius not Fahrenheit? Might mean a few less nanoseconds of calculations on the part of the controller. Since i know of 0 digital devices that internally record in Fahrenheit.
Also how near is the brs probe to any electrical devices? The internals of temp probes are all pretty similar, but the amount of water proofing and electrical shielding vary greatly. Will always be a difference between a probe that cost $30 plus a temp controller with a probe thats $50. Especially since the apex has far more electrical shielding inside its head unit(still not perfect why salinity probes on controllers skew so often.