We use these strips to do daily sanitizer concentration tests in our restaurant's dishwasher. The strips themselves work and complete the test within a second (as advertised); However, most strips are glued together as if cut from several folded sheets at the factory. It is difficult to notice at first, but in the end you will have to laboriously separate them or spend three or more times on each test, which will make the economy of the business much lower.
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