This has lower times than most times I've seen in this thread, including frequency:
http://www.thevillageswaterwisdom.co...un%20Times.pdf
Also, I was surprised to find out that the sensor on our system in a new home not only detected rain, but detected it for the last 3 days. It also considers the temperature for the last 3 days, and using that information adjusts the run times (as opposed to just turning the system on or off). I'm not sure I trust it yet, but if that works it would be great. It's easy to see why TV would put these kind of sensors on new homes. With so many homes to sell and some that sit for a few months, they want to keep the lawns looking nice but use as little water as possible.