Industrial Test Systems481027 WaterWorks Chloride Check Test Strips

Strips work great! Long shelf life that will allow me to run tests for a long time. Well worth the price!

I tested these with deionized water and salt water solutions. The colors range is not as large as it is on the bottle. Distilled water made the test strips change color to look like something around 100ppm. The effect is that I couldn't actually measure with the precision the bottle's scale would suggest. With some calibration solutions to get the actual colors, you can probably measure the salt concentration within a factor of 10-100.

Fast shipping from manufacturer. Results in less than a minute! I found the strips easy to match to the color chart. Strips are good for a year.

Unable to accurately distinguish between the middle ranges despite repeated attempts. Do not recommend.