PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

Item came early, which is always good. Well packaged in a box, not just a bag. Easy to use. This one is my second in 3 years. Only thing...the box for a storage container was checked off as if it was provided, but there was none. I didn't care because I kept the one from my first one.

Does the job. Accurate and easy to use.

I use Aero-Grow, but needed a second meter, so I got this one. They look almost identical, and they calibrate exactly the same way. I used the same solution and calibrated them both at the same time. When I compared their reading in distilled water, this one measured a pH of 6.99, and the Areo-Gro 7.08.The only thing I liked more about the Areo-Gro, was:1. It was a lighted display, and2. Aero-Grow clearly says it is U.S.-made with domestic support.I’m giving this meter a 4 star only because I don’t know where it was made…and I think they should say so.

This is a piece of detritus. You know, the stuff the fish leave on the bottom of your tank. And I don't mean the food. It is actually worse than an off brand pH calibration solution I purchased. Amazon, you need to start carrying some quality products. I have been in the aquarium hobby since I was five. Started with a Trinidad guppy, a minnow and a 1 gallon Mason jar. I am 76 now and I have seen some trash over the years but these last two purchases were horrible. All I wanted was a pocket meter for a quick check. Followed the directions to calibrate. Carefully measured 250 ml of distilled water and mixed the powder until completely dissolved. Waited the five seconds and counted the 3 flashes and cleaned with distilled water, dried and moved to the next calibration solution. Went through all three. Just for kicks and giggles I put the meter in some water from my saltwater tank. The pH in it usually runs 8.1-803. Not with this thing. Nope, it was 4.6. I no longer trust the reviews because I don't know if I am even getting the same product. Evidently, there is a lack of quality control in the manufacture of the two items I purchased. This meter and an off brand calibration solution. By the way, I tried to use that solution to calibrate this meter after it failed using the powder than came with it. It was still so far off it is worthless. Between the two it was close to $50 wasted. Oh well.

I bought this meter to measure pH on my expectant mare's milk to help predict her foaling window. I'm very impressed! It is much more accurate than testing strips for pools. There is none of the guesswork of trying to match the color on the test strip to the color on a chart. The meter measures exactly and accurately, from 0.00 to 14.00. Tonight measurement of her milk was 6.23 as opposed to looking at a color chart and trying to figure out what color orange the test strip matches. The meter was delivered on time, packaged well, and extremely reasonably priced. I highly, highly recommend!

I really didn't know. The numbers on the calibration solutions didn't get as high as the instructions directed to set the meter with..I guess it's close enough? Or the powders for the solutions were out of date?Beats me.

Been using the Ph meter for a couple years now. It continues to provide consistent and accurate Ph readings of my pool water. No chemicals or colored drops needed. Very slick!

Would definitely recommend it since is a great value and easy to use.