American Marine PINPOINT pH Probe

You must have calibration fluids to make this probe accurate.

I had purchased from a friend the electronic part of the PH Monitor but he had broken the probe. Luckily I found this one from these sellers and it was perfect and brand new at a good price. Better than having to spent a 100 on a new unit.

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.

Quality is subpar. Save your money.

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 dont think it moved around much. The tip of the probe was in a vial of solution as it should be.

The probe is American Marine, the listing was not very clear. After calibration it has worked perfectly with my Milwaukee monitor. It did arrive loose in a small box but was packaged safely. The plastic end cap protecting the delicate bulb was intact and full of storage solution plus a bit of cotton to hold moisture. Shipping was fast.

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

best ph probes to use for my apex controller. Cant tell much difference between this and the professional grade. I would save a few bucks.

Has anyone noticed these are slightly smaller diameter than normal and require extra tightening of the ph port gland in your calcium reactor?

Nice ph sensor well built good response I would recommend this product it can be left installed for continuous measurements