Color Tree's 3000ppm Chlorine Dioxide Test Strips - 50 Strips - 0-3000ppm Range - DIY CDS - OEM Custom ClO2 Test Strips

⚠️Please check the expiration date on your unit. Because of how Amazon shuffles inventory around fulfillment centers, it's possible you could get an expired unit, which will be evident in lower than normal readings. If this happens to you, message me with a photo for a free 2x replacement. ⚠️✔️If you ever have any problems, even after the return window has closed, do not hesitate to contact us for a resolution. USA based customer service. Excellent CDS resources are available upon request.✔️These OEM test strips are custom manufactured specifically for CDS applications. They test an exponential range between 0-1500ppm, and a linear range between 1500-3500ppm.✔️Made in a FDA registered facility, and are compliant with ISO and CE manufacturing standards.✔️Great for checking your work when making CDS or other ClO2 research/experimentation.✔️Contains 50 strips.✔️Highest PPM ClO2 Strips on the market. Custom manufactured.