Digital Ph Meter with Backlight, 0.00-14.00 High-Density Test Range Portable Water Quality Testing PH Tester 2% Reading Accuracy Water Testers for Pool Aquariums Hydroponics Household Drinking Water

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.

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

Works well good value for money

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

Everytime I used this it gave a different reading, only worked for 3 days.Trusted its readings so added fish, later used test strip to confirm it was wildly inaccurate.Can only calibrate once. Needs it daily.

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!

i have a few of these devices tho none of them read the same or even really close to the same.tho close enough that it's no issue to me.if i wanted proper accurate i would spend a fair bit more and maybe not be shopping on amazon.i would add that it's important to look after these ph pens - tho i'm not sure how one is even meant to do this