SUNZEAL pH Meter with Automatic Calibration, Digital pH Tester, Readings are Quick and Accurate(Blue)

I am an instrumentation specialist, I use pH meters at work all day long, meters I use at work running into the thousands of dollars, I Purchased to use at home in order to test some of my beverages, since I suffer severely from Acid reflux , I tested my low acid coffee at work and then I tested it at home, this meter was spot on. I have not had to calibrate it as of yet. By the way, a good pH range for people with acid reflux is anything above 7PH range, this is considered neutral.

When we got this, we were pretty bit confused by the directions. We think we figured it out, and the problem was we had 2 calibration packets that were identical but were missing any another ones. Basically, were really, really confused when we first got this. We work in a lab so we ended up giving up on it and made our own calibration solutions, (less hassle than returning it) but most people won’t have that equipment on hand. The meter is good though. Despite the initial issues it’s functioned great. Just make sure you have all necessary parts before using it.

Good product. Easy to use.

Decent tool for the money.

I wanted to love this product, but it wouldn’t hold its calibration long enough for me to even set it up. At first I thought there was something wrong with my prep, then wrong with the buffer solutions, but after going through my 3rd set of buffers & countless re-readings of the directions & calibration attempts, I finally had to admit the issue was the meter itself. My last attempt became my last when the meter flashed a completely bizarre reading-and then turned itself off completely. Permanently. I never managed to get it calibrated properly for even 1 single use.

Shipped fast worked fast and now I know the water was the trouble

This pH meter is really easy to use. Seems to work just fine out of the box.

I like the features of this meter and also the color. Easy to calibrate