Choosing the right probe for your AVADY STAR pH controller: Tips from a technical expert.

Client:
Hello, I have a PH STAR regulation. I have a PH AVADY STAR Ph regulation with a horizontally mounted probe, what type of probe should I buy?

Technical Advisor:
Hello,
One option is the
https://ph-redox-pool.com/gb/avady/190-pH-Probe-for-STAR-pH.html