Take a look at Galcon propagation timers. Many models are the same as irrigation timers, just have an S in their part number to indicate watering intervals defined in seconds rather than minutes. Galcon 8054 AC-4S is a 4-zone timer, also available in 6 and 8 zone variants. For starters, look for pricing at dripdepot.com as well as Amazon. A propagation timer with second resolution will allow you to set up outdoor misting beds in the future. They can also be used as a regular irrigation timer. Uses a wall outlet power supply and operates 24V irrigation valves, up to 2 simultaneously.
