This might be a useful timer for lawns & in-ground gardening, where an increment of 15 or 30 minutes watering is desired. I needed it to water plants (bonsai) in pots where water pours out of drainage holes after a continuous 10 minutes using a sprinkler head that I find reliable. If this timer could be set for a shorter watering period, other reviewers recommend it. I chose an Orbit timer, instead. The Orbit timer can be set in watering increments of 2 minutes, 5 minutes, 10 minutes, 15 minutes, 30 minutes or more.