American Marine PINPOINT pH Probe

I wont really know until I know how long it lasts. The orginal one did not last long at all.

You must have calibration fluids to make this probe accurate.

Works perfectly with my meter.

I have the meter and probe . all works good . need sometimes to unplug and replug to stop the jumpy reading . clean the probe replug all works well . my set up it a 24 hour set up. the probe is a 5. the meter is a 4

I needed a replacement for my PH reader and this little probe works perfect and is a great price. Thanks Amazon!

Quality is subpar. Save your money.

Item as described and it works perfectly fine

These work until they don’t. They need to be calibrated every 3 months or so and replaced every year. I recommend if you have the space in your tank or sump running 2 (the Neptune Apex has 2 Ph ports). Why not? Nothing worse than seeing parameters drift with no explanation. You’ll know when they stop working because suddenly your PH will become erratic or drift. They’re no better or worse than the Neptune “brand” version. I recommend getting some Ph solution to make sure they arrive calibrated correctly. I have ordered 2 and both have been good out of the box but you never know.

I have used Pinpoint PH monitor for 15 years from saltwater aquarium to freshwater aquariums. The probes have always been easy to calibrate and last. However the probes from this company are temperamental and the bulb on the end always seem to break. After owning 2 of these now in ~18 months my opinion is they are of poor quality. And the package is poor, makes me think they are used. I would rather spend the extra money and get my probes direct from American Marine

Liked everything about it. I use it with pinpoint ph monitor for accurate and reliable results