Hello,

Same problems with conductivity probe even with all the suggested solutions from other folks here, re-calibration, new place in relation with flow etc, etc. Was not possible to wait for new probes from GHL because of my installations.

-> Best solution so far for me: 3 conductivity probes bought from Atlas Scientific 1.0 K: extremely reliable and **stable** for a fraction or the cost. Extremely fast delivery (4 days).

I'm not frus strated anymore now! Good luck!!