Review on Gain Express 1999-1999MV Temperature Gauge 0-14PH by Herthoel Yanda

I wanted to know the facts about the local tap water as well as expensive bottled water. The counter worked perfectly and delivered good readings. I also calibrated the meter against known pH values of various waters and water sample values, which worked as expected. Tap water has always been around 7.5ph. Good handy tool, handy mounting box and easy to read display although I would have liked it to be a bit bigger. But reading in an ordinary house or in the sun is NOT stressful. The ORP readings were always positive because the water I tested was ion free. But I really want to find something to test that shows a negative value. This is a good purchase and I am happy so far.