American Marine PINPOINT pH Probe

I bought this to use with a raspberry pi grove pi from Seeed Studio for a controller I am building. This works great with the Seeed Studio pH sensor kit. It gives accurate readings with it. I cant speak on how long it stays in calibration and to the level it stays calibrated. But so far it works great. The main thing is it will work with the raspberry pi board.

It works as advertised

NO MORE TEST KITS AND PLAYING IN THE TANK. I LOOK AT THE READ OUT OF THE PH 24/7. THE ONLY WAY TO GO. IF YOU LOVE YOUR FISH YOU WILL LOVE THE PINPOINT PH MONITORING SYSTEM

HAVE TO REPLACE PROBE EVERY FEW YEARS, USED DAILY, GOOD PRODUCT

Using to monitor pH in my CO2 injected planted aquarium. Easy to check at a glance that I have optimal CO2 levels that arent approaching dangerous levels for my fish.

I bought this in February of this year. It will not take an accurate reading. Ive calibrated it on numerous occasions but it repeatedly reads low. Not worth the money.

This works great with the Digital Aquatics Reef Keeper Elite. All I did was calibrate it using pinpoint 7 and 10 pH fluid and it works perfect.

Quality is subpar. Save your money.

Works perfectly with my meter.

This probe had good characteristics in terms of stability, ability to calibrate, etc, but the bulb disintegrated after being inside the system after about two months.