This would make testing so much easier work smarter not harder! Nice that it does more than one test at a time less time manually testing each one means for more time to view the tank!
Love the idea of automation to allow more time to enjoy your tank. I write code and the concepts behind this are very intriguing plus I spend at least 8-12 hours a month testing. This won't handle no3, po4, fe, k, or i I dont think but getting ca, alk, and mg of the list would be nice.