LaMotte 2999 Test Strips, Chlorine Dioxide, 0-10ppm, 50 Strips/Vial

I have been using these for some ClO2 solution testing -- please note Chlorine Dioxide (ClO2) is not the same as "chlorine bleach" aka sodium hypochlorite (NaClO), which is commonly used to sanitize swimming pools and drinking water -- and they work very well. I have been comparing results on these strips with a $1,000 Palintest ClordioXense meter that is highly calibrated. The meter is accurate to +/- .02ppm and has a range of .03ppm to 50ppm. The strips have been accurate (as accurate as they can be using colors) for all readings between 15ppm and 100ppm. Below 15ppm they tend to show "10ppm" if there is any chlorite in the solution (unconverted to ClO2), so I would suggest using the "Low Range" test strips which are effective, IMO between 1-10ppm.Above 100ppm the scale goes logarithmic, and it is really hard to tell 200 from 300ppm, so these will tell you that your solutions is REALL STRONG (which may be all you need) but if you need better numbers, I suggest you dilute your solution with distilled water to a 1:4 ratio so as to get it into the more useful range on the test strips. You will lose some ClO2 due to outgassing -- seems like about 5% when I do it -- but still, a much better number.My meter uses disposable sensor strips that cost about $1.00 ea, so I'll start relying on these a bit more now that I know they are pretty solid, especially for 25-100ppm measurements.

I will never buy another brand for Chlorine Dioxide Solution. This brand came highly recommended and now I know why. It is spot on perfect.When I first started making Chlorine Dioxide Solution, I could never understand how it could look so perfect in color but be so wrong on my other purchased test strips. Now I know why. It was because they were faulty. One reading would show a brown reading and another one green. (see faulty reading pics)Since, I have aquired these strips, my strip values coinside with my Chlorine Dioxide Color. (see new correct value pic) Now, I am more confident in what I made and what I take, because I know my values are where they should be.Best test strips on the market. 5 stars! Highly recommend!

Bueno, esto no es algo de lo que se pueda decir mucho, hacen exactamente lo que esperas que hagan, el precio es razonable, volveré a comprarlas cuando me sea necesario

Buena calidad y hacen el trabajo muy bien.

Cool Tool

These work perfectly!

I've used these to check the strength of my CDS. I have used them to check different batches. I know they are working as some batches have been weaker than others! I wouldn't hesitate to buy these again when I run out. Nice Seller too, checked to make sure everything was fine with my order. I hope this was helpful.

We have been using this brand for 5 years. Good products and the service from the seller is prompt. Very happy about the purchase.

This does the job perfectly

Produit conforme aux attentes. Envoi très rapide.

Wie in der Beschreibung- zeigen zu verlässlich das Ergebnis an.

No sirve para nada

bought some cheaper ones that were fairly expensive but they were hopelessly inaccurate, complete waste of time and ingredients. Sent them back.Bit the bullet and bought these instead. Yes they are expensive but if you want to measure what you're making accurately then it's important to have the tool measure the chlorine dioxide precisely.These perform that task perfectly.Glad I bought them.