Industrial Test Systems SenSafe 481026 Free Chlorine Test Strip | USEPA Approved Method D99-003 | 0-6ppm | 0.05ppm Detection | No Bleach-Out | Bottle of 50 | Drinking Water, Food Service, Restaurant

Easy to use and read. Accurate results. Used to test free chlorine levels in a small community water system. Easier to use than a colorimeter.

I use these to test the free chlorine level in the water tank at our off grid cabin.

I have tested 3 different brands of test strips over a 7 day period and they did not correlate at all. 0.2 to 4.0 That is a huge difference when you are drinking the stuff. If you simply need to check if you have chlorine in your water these will work. If you need a definitive number go with a Taylor chlorine kit instead. For reference: I check my drinking water tanks for free chlorine every morning. When it gets below 0.2, I add 2.5 teaspoons of (drinking water approved) chlorine granules to a 2500 gallon tank. For our water usage, it will last a week before I need to chlorinate the tank again.

My whole-house water filter contractor keeps wanting to replace my filter, but I test with these strips a say, no thanks, the water stills tests filtered for chlorine.

Purchased August 2022 to measure monthly Free Chlorine (TRC) from new septic system install for County Health Department. Always measured zero Free Chlorine, well below minimum required. Spent months with equipment manufacturer and installation contractor trouble-shooting system. Tried several types of chlorine tablets, etc. Finally had independent lab test and free chlorine was 0.99 mg/L. This test kit was defective! And could not return for refund because past the return date.

Worked great for chlorinating a well. Needed to know when chlorine was out of the water.

Easy to use product

My apartment complex stopped softening the water the chlorine jumped. Good to keep track of chlorine