Digital ph Meter, 0.00-14.00 High Precision pH Pen, Auto Calibration and Clear Display, pH Meters for Household Drinking Water, Pools, Aquariums

Works as expected

Didn’t work, but fast refund.

Buy in confidence I feel it's more accurate than using chemicals

Great little gadget this !! Very accurate and immediate confirmation of the PH in my hot tub. Would definitely recommend.

No frilly bits or no bells, just a standard ph pen. There are many different ph testers out there for you to waste your money on but if its not broke dont fix it as this does the trick. The pen does seem a bit faulty however, occasionally the pen flickers on and then off however, this doesnt make a big issue as it does still work.

Package only contained two buffer solutions for calibration (the instructions call for three). Additionally, it gives wildly different reading for the same sample every time you measure it. Finally, the reading changes if you move the meter around in the sample, and doesn't settle back to the same value when you stop. If you need anything more than an estimate to one significant figure, this isn't the tool for you.

Very easy to use, has calibration powers so you know its precise. Use it for out fish tank

Does not come calibrated and only includes 2 of the 3 pH buffers required to calibrate. Unless until I buy more buffer.