This interview was done at MACNA last weekend. Jim Welsh's newly built invention is the Alkalinity Monitor. It will measure tank water as frequently as you desire, and that data can be acted upon by your controller. It could send you texts & emails if the reading is out of range, and you can see what the latest measurement is just by glancing at the display on the device, or by computer or smartphone. It could trigger or stop a doser if needed. He explains it quite well, and I gotta say I'm really impressed.