American Marine PINPOINT pH Probe

After shopping for a replacement PH sensor for my old Polaris Watermatic C-600 ORP/pH Controller and finding the going price around $200, I decided to give this probe a shot. It works perfectly and I am once again able to calibrate the controller. Physically the probe may be slightly smaller in diameter as I had some trouble getting a good seal. It did arrive loose in a box without any packing material, but because of its weight and the 10' of lead I don't think it moved around much. The tip of the probe was in a vial of solution as it should be.

I have the monitor and the guardian monitor, both needed new probes, these were super cost effective, came packaged safely, plug n play, calibrated in a snap, and has held calibration as well as the OEM part did. (maybe better, as it was replaced, am i right?)

Works as advertized

For the $, lasted considerably longer than expected. Using as replacement on BLUELAB combo meter. Worked perfect almost a yr, just took about 1min to read correct PH.Sure beat $70 for the actual blue lab replacment ph probe for price, & lasted about same amount of time.

I had a Marine PINPOINT CO2 controller from about 20 years ago. I was so glad to find that the probes were still available.