John, I am careful when I sense information is thinly disguised advertising. There is so much of it on the internet nowadays and lists like ours are especially vulnerable. The product you mention is sold by the person who wrote the manual using a pen name. You will have to make a better case than that to show that his generators produce "better" EIS than the homemade generators. Those for sale on his website are similar to those found elsewhere and on the high side.
The Silverpuppy is a better investment for anyone who wants an automated system. I still use an alternating current generator, an aquarium pump and a kitchen timer and I am very happy with my EIS/CS. Carlene
