Apera Instruments SX620 zak-pH-meter (pH 0, 01 nauwkeurigheid, automatische temperatuurcompensatie, waterdicht, compact)

I bought this Apera pH meter to test the jams pH before canning, because in home made preserves is very important to have a path lower than 4.6 to avoid growing undesired microorganisms, some of them potentially harmful as boltulism. Now, with the Apera pH meter I test before canning the pH to be safe with my jam's preserves at home, and I'm not afraid of the toxicity for my family and to share my jams with friends. Great and simple to use, just put the pH meter inside of the jam and read the number. I will buy it again for sure, and I'm thinking in buying a upgraded version in the future, because I love SAFE home preserves!

I've been using pH strips for my fermentation business. This is so much more precise and clean. Love it!

Stopped working all of the suddenAnd to think that you invest so much in where are suppose to be long time quality!Very dissapointed

The item arrived earlier than expected and comes well packed. I like that it is lab grade with a certificate of quality control and calibration date. The meter itself is very well made and doesn't feel cheap. It has a built in thermometer which is not necessary for my use but very convenient. the calibration and solutions were sealed tight and did not leak. The kit includes 2 extra batteries which is nice. The instructions for calibration are very clear & easy and takes about 2 mins to do. My only complaint is that the protective cap on the ph meter probe was not on tight and the soaking solution that is used for long term storage, leaked out and crystallized. The kit does come with a bottle of soaking solution so i just had to soak and clean the probe before calibration.

I have absolutely no idea how I lived without this pH meter. I had only used older technology, or the cheap yellow meters seen everywhere (which are fine for telling the difference between lemon juice and drain cleaner occasionally). I knew that this one would be better, but I didn't know how much better. Wow. I can actually see the pH change as I add uL of acid or base. I no longer have to put the dumb yellow pen or giant 1980's pH meter in the solution, go drink a cup of coffee, add a reagent, drink another coffee, see if the reading has changed, drink more coffee, read the meter and compensate the value for temperature with a table or calculator...I never trusted digital pH meters too much and used to do a titration or at least double check with litmus paper. This meter is dead on, and I have no idea how I lived without it.Although I've only used the +/-0.01% version, I'd say it's worth the extra $20 if you need precision. This model is small, and may not be as rugged as the larger models, but it does fit in test tubes, and can fit in a buret clamp on a lab stand. Very nice. If I ever need ORP, salinity, or any other meters, I'm definitely going to go with Apera again.