Fivota pH Meter, Digital pH Tester/Water Quality Tester for Drinking Water, Swimming Pools, Aquariums, Hydroponics, ATC Function, LCD Display

Numbers are too small, hard to read.

I always wait until I've used a product a while if I'm going to post a positive review for it and normally I don't bother.Well, I've used this PH Meter continually for 6 months in a variety of applications. It's super easy to use and it required no calibration adjustment out of the box. I've had many occasions to compare readings from the pocket Fivota with lab analysis measurements. The Fivota meter's readings have all been no more than 1/10th, mostly far less, of the accuracy range listed in the product specifications! I made a second calibration not long ago and it needed no adjustment! I'm impressed and takes a bit to impress me!As with all pocket meters, you have to be careful with the electrode to ensure longevity and you can't just throw the meter around haphazardly. Otherwise, this little meter has been very tough in my rough environment and has withstood bumps, jostling, banging around in my toolbox, and a few drops with no damage!So, for the price, I can honestly say you could hardly go wrong with this meter. You'll get a tough and surprisingly accurate little meter to carry around in your pocket or toolbox if use a meter often.Enjoy!

This meter came pretty close on calibration. A little tweaking of the screw and it was reading 6.9 and 4.0 on the standard solutions.The real plus for me is it gets a reading pretty fast, like in seconds not minutes.It seems to work great on my pool water. I have gotten reasonably good at adjusting most of my pool parameters with the test strips, but reading pH on the test strips continues to allude me.While pools tolerate a fairly wide range of pH, it is still an important parameter to keep in spec for chlorine activity and for creature comfort- eyes particularly. With salt pools the method of chlorination naturally raise the pH so having an easy, fast method saves chemical costs and improves creature comfort. This is my 3rd pH meter of this type and so far seems to be the best yet.

works well but you can't get it wet or they will be useless. Strange for a water tester.

I have had several different PH testers similar to this one. Purchased a similar unit with automatic calibration just a few days earlier than this purchase and was not at all satisfied with the calibration process. The ability to manually calibrate this meter makes a HUGE difference. It is easier and more reliable as a result. I use the meter to manage water for growing, it works GREAT!!!

Thanks for the replacement ! Got here quick and I tried it right when I opened it and it was easy to get the screwdriver on the adjustment screw. The first one had a messed up screw and it was a real hassle to calibrate. This one was simple. Everyone makes mistakes and that’s ok. The measure is how and if you correct your mistakes and you did. Thanks again !

I was very disappointed. The calibration screw is TINY and accessed through a tiny hole in the case AND misaligned with the access hole making calibration nearly hopeless. Construction and quality control are clearly inadequate. I managed to calibrate the device ONCE and it worked very well. However, I do not care to struggle with the set screw for an hour. I will see if I can drill out the hole to access the set screw (without daging the delicate mechanism) and if I fail, I will dispose of it.

I finally received the product I needed. The package was complete when I received it. To my surprise, the product was even better than I expected! I had to give a thumbs up. I'll come back when I need it next time. The quality is very good. I'm very satisfied. I really like it. It's totally beyond expectation. I'm very satisfied with a shopping.