Pinpoint® pH Probe KIT for Easy and Precise Digital pH Measurement

Hi have been using pinpoint monitors and replacement probes for decades. Very affordable, accurate, and reliable. Highly recommend it

A tad pricey, but worth it. Always been spot on. Had to buy another.

The probe will not calibrate i have tryed several time amd it is no good.

Decent. Expensive.

I was shipped in the proper container the hold a liquid. Could have had a little more fluid in the container but is well. I have been using this product for years. Must keep them clean. You can reuse the calibration solution for a while but. It does go bad.

So easy to use.

This pH probe is one of the best ones on the market for the price, very accurate. Only thing is that it came poorly packaged in an amazon bag with a very thin carboard box, so during shipping two of the PH Buffers one of the 7's and one of the 10's came punctured or something an all leaked inside the box, PH probe was in good shapebut It could have been broken during shipping, i hope in the future they package the probe in a better box, i purshased a chinese one that was cheaper for my kalk stirrer and it came in a sturdy plastic box. American Marine can do a better package for a probe that is so delicate as a Ph Probe.Other than that, it calibrated exactly as it should with the remaining buffers i had.. and keeps accurate readings for my Neptune Apex system.

Tried this on Neptune Apex and would not calibrate. Got a replacement and same thing off by .5+. On each I received I tried twice using both sets of calibration solution. After calibration not even close on the PH of the solution. Not sure if bad batch but both sent back and bought a more expensive Apex one and it works fine. These do advertise to work with any PH monitoring device.