Haobase Indicator Litmus Strips Tester: Accurate and Reliable Color Indicator Testing Tool Review

only suitable for basic acid and alkali tests subtle differences pffff forget it Paper is either normal color or the darkest highly alkaline color, nothing in between

I bought these to test tap water, water from my fridge and alkaline water that I buy. There was no noticeable difference between them. I will try drops to test later. Even if it annoys you that something Chinese is written on the packaging, don't buy it. The website on the package didn't work either.

Not suitable for testing minor pH differences, e.g. B. Drinking water. However, it is ideal for teaching or for experiments and work with acids and bases for young people. It's fairly accurate and an unsupervised child can easily tell the difference. All litmus papers are the same. So if you need something more specific, use indicator papers, but any other litmus paper will do the same job. My students used them to test pH before studying acid-base reactions. Also good to use to learn extra fun