Adjust With One Dial Cycles Easily To Create Programs Built-in Rain Delay Manual Button Allows Program Interruption Easy To Use Orbit Underground 27936 Green Thumb 1 Dial 1 Outlet Timer has one dial that allows complete timer control functionality. Cycles easily from set clock, set watering time, how often, how long, then "run program." A rain delay in built into the "run program" function. A manual button allows program interruption.
This is the second timer I have bought of this model. I am using them both on two separate drip systems. They work great. The first one I have had for two years. The batteries will last well over a year.