Product Reviews
We have conducted tests with RCARD Ecoli-A and certified laboratories of CONAGUA (Mexican National Water Agency) with excelent results
Love this test. At $2 a test you can test first and ask questions later.
R Cards are easy to use, greatly reduce waste to manage and make our monitoring program possible at reasonable cost
We have used products from Dr. Roth for decades in teaching settings. They are incredibly easy to use and interpret. These products are Godsend, especially to introductory courses.
I agree with Neal 100% - great customer service. I highly recommend these products...I give 6 stars!
Customer service is superb. Hard to find good customer service these days. It appears these people actually care about their products and what people think. Pleasure doing business with them. Refreshing change .
Meets our needs efficiently and effectively at a reduced cost and reduction in waste.
Relating to my review of 9/28/2003, it turns out this was my fault, my previous orders were for 3 ml cards, and this was a 1 ml card. Dr. Roth phoned me up and set me straight. He says you need to let the water gel for 2 minutes before closing the film. This is not convenient for me, so I'll be using the 3 ml cards even though I use a 1 ml sample. I appreciate Dr. Roth taking the trouble to phone me.
All looks ok. This order was send to my Customer in Guyana.
These cards have been so great to use and have a very low environmental inpact.
I find the packaging of the pipettes difficult to open when I am at lakeside.
If using R- Cards requires the use of three per test, why do they come in packs of 25? Why not 24?
Hello, Judy I appreciate your review. Not everybody does three per test. Some people use 5, 1, or 2 cards per test, while others use all 25 cards.
We find that the R cards provide us an inexpensive tool for presenting water quality sampling to students in our school STEM program. We are also able to demonstrate how science is moving away from the petri dish model of processing samples.
The bottles are convenient and reasonably priced.
I received my order in record time and enjoy the use and convenience of R-Cards.
This new protocol has saved us significant time and effort and cards are easier to interpret than Coliscan protocol plates we have been using for years. Economics on the cards are good also. Thank you!
We really like this product. I could see us ordering many more over the coming year(s). We have done several dozen side-by-sides with the standard membrane filtration method and the results so far are promising (for certain types of work that we do).