Digital Ph Meter, 0.00-14.00 High-Density Water Quality Accurate Test Range, Portable Water Quality Testing Ph Tester for Household Drinking Water Pool Aquariums Hydroponics (Yellow)

not much to say, but can say to all, the readings of the ph is very accurate, easy to use and it already comes calibrated, but if you needed to calibrate, its fairly easy to do so, the bright lit up screen is good , good case with it, and battery seems to last long time, using it for ph checking on fish tanks, and the ph reading is consistent with the liquid ph test kits, so i am more than happy to trust the reading from his pen. good product to keep at hand.

Didn't calibrate in all the liquids. Accuracy is out by 20% in 100ppm but even more when tds is as high as 300ppm...30%

Works well good value for money

Stopped working after a few goes

Not the accuracy I was looking for.Regularly looses calibration and unstable readings

Got this to monitor my aquarium it works fabulous easy to use and get set up can't recommend it enough

This ph meter is an improvement on my previous one. Nice bright colour, accurate reading, calibration powder included as well great bit of kit!

Accurate for gardening stuff, not so much for anything else, cheap construction, but hey, it works!