Review on 📈 Extech PH220-C Waterproof Palm pH Meter: Reliable Cabled Electrode for Accurate Readings by Bradley Wacks

For some laboratory tests I need to measure the pH from 1 to 13 accurately. My other meter was terrible. I didn't want to spend many hundreds or thousands of dollars on a lab pH meter. After much research I came across the Extech PH220-C pH meter. I am very impressed. I did a two point calibration (pH 4 and 7) and tried to measure 0.1N. KOH solution (it's a very accurate solution with a pH of 13) - and it showed 13.0! Make sure you order some buffer bags elsewhere. This meter comes with just two sachets of ready-made solution. By the way, if you are interested in the brand, Extech is known for their multimeters and other voltage measuring devices. Since a pH meter is nothing more than a voltmeter, it makes perfect sense that Extech would make pH meters.