2000ppm Free Chlorine

SKU: 33815-2000

$14.95USD or lower Each

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Quantity1+2+ 3+ 10+ 100+ 
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[4.9]   8 Reviews    | Write a Review

Buy Indigo® brand 0-2000ppm chlorine test strips to guarantee compliance with daycare regulations, only $14.95 /100 strips; discounts start at 2 or more so stock up & save with our 3 year minimum guaranteed shelf life. Full documentation including Certificate of Analysis, Stability & SDS are available. Be prepared for any health & safety audit or inspection.

Indigo® brand chlorine test strips are Made in USA & tested for accuracy using NIST compliant standards. 2000ppm chlorine test strips have color bars at 50-200 and 500-800ppm that indicate sanitizing & disinfecting health & safety guidelines.



Indigo® brand chlorine test strips are Made in USA & tested for accuracy using NIST compliant standards..

Cleaning, sanitizing & disinfecting surfaces are the 3 steps you need to take to keep children in your care healthy and safe at child, youth and school services. Do this for food preparation & contact surfaces such as countertops, plates, utensils, pots, pans, cups, cutting boards, stove, oven, grill, ventilation/exhaust hood, microwave, food warmers, carts, tables, highchairs & waste receptacles.

The color chart has ranges for sanitization (50-200ppm) & disinfection (500-800ppm). 800ppm is considered the maximum level for child safety in the event of ingestion. You may also want to look at the following 2 pdf files from the State of California for "Sanitize Safely & Effectively" & "What is Safe & Effective Use of Bleach"

Use our free Chlorine Bleach Dilution Calculator to calculate the amount of bleach & water needed to prepare any ppm levels. You can use any concentration of chlorine bleach to prepare a sanitizing/disinfecting solution but as an example the video shows an 8.25% solution diluted to produce 650ppm (the midway point of 500-800ppm for disinfection as shown on the color chart).

Note: the video below has references to our original domain, indigo.com. Please ignore and bookmark us at www.indigoinstruments.com.


Daycare/Preschool/Childcare Cleaning/Disinfection Checklist

Are you involved in keeping a daycare, preschool or childcare facility clean and safe? Try our handy checklist for areas to cover and tips on how to ensure you are doing it properly by testing with our test strips.

Cleaning/Disinfection Checklist

Results in 1 minute with readings at 25-50-200-500-800-1500-2000 ppm for free (available) chlorine bleach concentration.
    • Indigo® test strips have a guaranteed minimum 3 year shelf life but are stored in desiccant lined vials so actual shelf life can be 5+ years.
    • For technical explanation, read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?
    • These strips measure free (available) chlorine
    • The number of strips (100) per vial is approximate.


Test Strip Documentation

Stability Statement Certificate of Analysis SDS
Indigo Chlorine 2000ppm Test Strip Stability Statement Indigo Chlorine 2000ppm Test Strip Certificate of Analysis Indigo Chlorine 2000ppm Test Strip SDS
Reviews (8)

One of the only places we can purchase these strips that are mandatory for use in our business. Prices are very reasonable. Fast, easy ordering and they get here quickly. What more could a business want?

— Connie
— Indigo:

Thanks for the great feedback.


We use the Indigo™ brand 0-2000ppm chlorine test strips daily at work to test inhouse made hypochlorous acid (HOCl-). The range of the test strips is perfect as we use 500 ppm to 1500 ppm depending on the application. This products gives me the security to know that the product we are making is going to disinfect properly. I will be ordering this product again. Thank you.

— Lenna
— Indigo:

Great to hear that. Nice to get feedback from someone who actually produces disinfectant.



I write this positive review as a private researcher. My career spanned five decades at the University of California at Berkeley as a manager of shared research facilities. I treasure no nonsense solutions to problems. I am pleased to write a review for Indigo Instruments which is positive. The company's a pleasure to do business with and their test-strips have greatly simplified my efforts in Andean orchid preservation using asymbiotic in vitro propagation.  Robert Hamilton,  Berkeley, CA  

— Indigo:

Thanks for e-mail explaining how you use them. "I use your strips to measure HOCl concentrations in solutions I make by hydrolyzing KCl. Plants like K but not Na; hence, I don't use Clorox as most tissue culture labs."  Using hydrogen peroxide test strips in greenhouses is more popular, nice to know about a different application. 

Great web site. Impressed with quick delivery. Will definitely be ordering again
— Bob
Easy use of website, Quick delivery. Great customer care.
— Ruth
— Indigo: Happy to help with the testing needs of your company.

We operate an Adult Daycare program and our local supplier, for these strips, stopped carrying them in the strength we needed several years ago. I found Indigo online and we get fast, efficient service with good pricing. Website is very "User Friendly". Very satisfied with this Vendor.

— Connie
— Indigo:

Great feedback & good to know you found the website easy to use.

Excellent website, and quick delivery. Very happy with service.
— Stu
I ordered this product for my child care center. The order arrived quickly and the product worked well.
— Sr. Paul Mary
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