Plastic pH Test Strips, Universal Application (pH 0.0-14.0, 0.5 pH Intervals), 100 Strips

The reason I like these 4 color strps is you always have certainty you are in the range you anticipate you'll be in, plus you can measure ANYTHING from 1 - 14 pH. Even if you'll always anticipate a range of 2.5 to 5 lets say (like I use them for) sometimes things may change and the reality may be that your pH is way out of wack but you may be fooled to think you are still at 5pH because that's the max of your 2 colored strip, like I used to use. The 4 colors show it clearly that you're liquid is out of your anticipated range. I used 2 color strips before and they don't assure you that you're looking at the right range sometimes because 2 colored strips only do a small range, like 1-5 pH, versus 4 colored strips which do 1 - 14 pH. When you have the 4 colors, you always know you are where you think you are, reading wise. I had trouble sometimes determining if I was at 5, or higher, because mt 2 color strips only measured to 5, whereas when you have the 4 colors you KNOW you are high or low because the extra 2 colors start to react. These give me easy to read accurate results every time.

These are pretty good strips. If you're wondering, there is a color scale for the full range from 0-14. As with all such strips, the assessment of where on the scale a sample falls will be somewhat subjective, but you can probably get within 0.5-1.0 without too much trouble. I checked them against some other strips I have, and they seemed concordant. Also as with other strips, they won't necessarily work very well with colored substances--like red cabbage sauerkraut.

I was happy with the product. These are about average for the price point. The test strips work.

These work great and respond immediately. Used them for Cider making. I find the 4 colors on the strip easy and accurate to use when matched up/lined up against the provided color chart. The only suggestion for improvement might be a light safe bottle for long term storage (but then you'd have to fit the 38 different color charts onto the bottle too)

Not as precise as a digital one, but it works.

I purchased these to be able to measure the water coming off of walls on my log home after using chemical stripper and brightener. Tried a few other pH strips and the others ones did not seem to react properly. These worked wonderfully and are easy to read. I was able to instantly verify if I had washed all of the chemicals off or if I needed to continue washing to return to a neutral pH. Would definitely recommend these strips. The accuracy seemed spot on as well.

Really helpful in determining whether acid or alkaline being ingested.

The strips are easy to use. You dip your test strip in the solution you are testing (mine was a cosmetic cream) and then you line it up with the provided sample chart that comes with the strips. However, the strips are difficult to match to the sample chart. It is tough to figure out which color is supposed to be closest to the color of your test strip sample.