Search for High-Quality pH and Redox Probes for Pools: Dialogue between Customer and Technical Advisor

Client:
Hello, we are a Belgian company specializing in pools and basins. I am looking for high-quality pH and redox probes. Can you provide me with references for superior quality pH and redox probes? Currently, I am working on an Astralpool installation with a panel that has 2 blue micro-injectors. Are there probes with a gold tip? Are they more reliable even if it's not electrolysis? The original probes from Astralpool are terrible.

Technical Advisor:
Hello, gold tips are sometimes present on certain devices but not on the pH RX panel.

Client:
Is it more reliable, even if it's not salt? The client doesn't care about the cost of the probe. The redox goes up to 820 and I have 0.5 mgl of chlorine (with a photometer). No matter how much I clean (with hydrochloric acid) and calibrate, it keeps drifting (ground pool issue).

Technical Advisor:
Do this test: https://ph-redox-pool.com/gb/content/17-is-my-redox-probe-out-of-order