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Regularly: $1.69/Each
  • Tests 10-200ppm
  • Includes color chart and 100 test strips
  • Easy-to-read color chart, immediate results
  • Measures chlorine sanitizing agents to detect exhaustion or excessive amounts
  • Simple, reliable, and economical

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Ensure your solutions are safe for use with these Noble Chemical CM-240 chlorine test strips!

Noble Chemical CM-240 chlorine test strips are the simple, reliable, and economical way to measure the concentration of free available chlorine in sanitizing solutions. Each strip measures concentrations between 10-200ppm (parts per million), with color matches at 10, 50, 100 and 200ppm.

  • Made in America

    Made in America

    This item was made in the United States of America.

Easy-to-Read Color Chart

Each strip measures concentrations between 10-200ppm (parts per million), with color matches at 10, 50, 100 and 200ppm. The distinct color chart and accurate, reproducible readings give an immediate response for quick and easy use.

Meets Requirements

Federal, state, and local health regulations require users of chlorine-based sanitizer solutions to have appropriate test kits available to verify the strength of sanitizer solutions. This kit meets those requirements.

Easy to Use

The distinct color match at each full unit makes it easy for the user to detect exhaustion of solutions that should be replaced. It also helps avoid the use of excessive amounts of sanitizing agents, to avoid wasting product! Simply remove a strip from the vial, dip the strip into the sanitizing solution, blot with paper towel, then instantly compare the resulting color with the color chart.


Sanitizer solutions are essential in the food service industry. These strips ensure that those sanitizers are at the proper concentration. For accurate results, store these test strips away from areas with high humidity or where they may be exposed to water before use, as those conditions may compromise results.

Noble Chemical Test Strips

Whether you need a quaternary or chlorine test to help keep your establishment up to code, these Noble Chemical test strips are sure to help with the job. Check out this video to learn more!

Keep up with health codes with these Noble Chemical test strips. We offer both quaternary and chlorine tests depending on your type of sanitizer. Both are available in rolls, which can be torn to a desired length or in pre-measured strips. Each bottle or dispenser comes with clear, easy-to-follow instructions to ensure accuracy. The quaternary test takes about 10 seconds, and the chlorine test is practically instantaneous. To make things as simple as possible, there's also an included color comparison chart in each kit. Simply compare your results to the chart to ensure proper levels. Dialing in just the right amount of sanitizer is important. You want to be using enough to effectively sanitize, but using too much is just like pouring money down the drain. The quaternary test measures from 0-400 parts per million, while the chlorine test measures 10-200 PPM. By finding the perfect balance, you'll be able to maximize profits while complying with regulations.

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Kit Includes:
  • Vial: 1
  • Color Chart: 1
  • Test Strips: 100

Attention CA Residents: Prop 65 Warning

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Customer Reviews

  • Overall User Rating: Noble Chemical CM-240 Chlorine Test Strips 10-200ppm - 100 Count Vial

    4.9 stars from 80 reviews


    People Talk About:

    strips test easy great chlorine health water department vial price
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    For the price there is nothing to complain about this test strip. The strip is easy to use and there are plenty in one tube.
    It does the job! All strips come glued together at the end, which I thought was kind of annoying, but I don't expect it to be different. So what I did was just cut the glue off and now I can grab an individual piece each time.
    The last time someone from the Health Department came to check on me, I didn't have this. it’s cheap .I immediately ordered it from WebstaurantStore. Thanks
    Good practical product to have, these are accurate and help to measure chlorine level. They do the job and are very inexpensive, recommend having these.
    These little strips help us monitor our 'sanitize' sink, and make my health department inspector happy. We keep them near the sink so we can keep our third compartment in compliance.
    We only use these branded strips in our restaurant, they have proven to be accurate and consistent with their readings. We rely on them, day in and day out.
    These are a very important tool that we use by both of our dish stations. It is required by DHEC so it is a must to have on hand. This brand is very trusted.
    A must-have item that does the job. Every inspection includes a check to see that we are using these so I keep plenty on hand. I tear them in half to make them last twice as long. (A little trick the inspector told me about.)
    Chorine test strips work well, my only feedback is it is kind of hard to get them out of the container. Maybe this is just me though!
    These work well, the tastes always come out the same for our strips as the ones the health department uses so that is great, just be sure to keep them out of high humidity and excess moisture as the container isn't as watertight as I'd like
    Great product you get a lot of strips for very little money easy way to test the levels. I will be ordering more for my business
    Health inspector loves to have these on site! Make sure to keep them and let them know they are for chlorine! These are very accurate and great price!
    Easy to peel/pull off per use to get a strip and then you just gauge the color it turns as you add your tablets, super easy!
    Purchased these strips after trying the roll. These strips are way better than the roll. Love the canister they come in. They are not loose in the canister is another plus! We definitely recommend these strips.
    These chlorine test strips are great and easy to use. You don't even need to be a chemist to know how to use this product and it is very easy to read.
    This a something we have to have because our dishwasher uses chlorine and this was recommended by our local health department inspector to have on premises
    These strips are easy to use and works great. With a great price point you get 100 strips per vial they are very affordable. Also they come suck together like sticky notes which is great, making it easy not to lose them or have them fall out separately.
    Very easy to use and a quick check on how my levels are. verall I am very pleased with these test strips. They work great and a great value.
    This is a very solid product, they work well every time. And they're cheaper here than anywhere else I've found them. It's a win! The pre-cut strips are far easier to use than the other type of sanitizer test paper we've used that comes on a roll, where you have to try to tear a piece off when your hands are wet.
    really easy to use, keeps my water under the right content, the best way to stay on top of the right amount of product to use

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