When the flow of milk slows down, the machine knows to stop and sends the cow on its way.

　　The technology isn’t inexpensive. Fendrick has spent more than $150,000 to install the system. He points out, however, that paying someone to milk the cows isn’t cheap, either.

　　Dairy cows need to be milked on a regular schedule or else their milk flows slow. Most farmers are tied to a schedule of early morning and late evening milkings, twice a day, every day, rain or shine.

　　By contrast, with 50 Guernsey cows, Fendrick, says they can stay out in the pasture until they feel like a milking. Some come in the middle of the night.

　　On Woodbourne’s 60 acres of pasture, Fendrick does not even need to be there to watch them. He can watch from his smart phone and find out when each cow milked last and how much she produced.

　　“With my phone, I can actually do pretty much everything I normally do up at the dairy,” he said.

　　His wife Mary t