American Marine PINPOINT pH Probe

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

Quality is subpar. Save your money.

Always use this replacement probe. They hold up better and stay accurate.

Works perfectly with my BlueLab combo meter and at half the price too!

The replacement pH probe that I purchased does work and did callibrate properly. However, I did have a couple concerns... Firstly, this vendor appears to be (perhaps) selling this probe outside of its OEM packaging, judging from the fact this delicate probe was simply sitting loose in a largish, white box with no packing, paperwork, or documention inside and very little in the way of stickers or documentation on the outside of the box. The way this probe was packaged, I am surprised it survived shipment undamaged... a little packing material inside the inner box (product, not the shipping box) would have gone a long way. Secondly, this is a very limited shelf-life product according to the manufacturers manual. However, nowhere on the probe I received, its box, or the limited documentation that came with the probe, is a manufacture date included, and the one I was sent had signs that it may have been sitting in a warehouse for quite some time. Most notably all the storage solution that protects and preserves the delicate bulb on the bottom of the probe had evaporated and/or leaked out of the cap, leaving nothing but a caked-on salty residue on the bulb. Since none of the residue was in the box that the probe was packaged in, perhaps it had just evaporated out slowly, or it may explain why the probe appeared to be repackaged When I purchase a replacement probe again, it will likely not be from this vendor. The product itself is sound and of good quality.

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.

Writing this review after 1 year of use. So far is has worked great and is a good value. I have it working with the Atlas Scientific board in my Reef-Pi setup. The much more expensive Atlas probe died after 1 year and was not as accurate. So I would buy this again in future.

Works great with bluelab combo meter for hydroponics. good replacement and a better build quality than the blue lab.

Loses calibrationQUICKLY !!!!

Good value. Holds its calibration well and stabilises at a new reading fairly quickly. Its not a high priced unit so I did do a quick check on the accuracy. After calibrating with standard buffers at 7.0 and 10.01 I made up a pH 7.8 potassium phosphate buffer solution and the probe (with American Marine pinpoint pH meter) gave a reading 0f 7.79. Im a home user and only interested in the range from 7.0 to 9.0 so please bear that in mind when reading my review.