4 zone automatic sprinkler system controller. 3 programs and 4 start times. Programs A and B automatically stack starting times. Program C can be used to run drip irrigation program cycles and can be run simultaneously with other non-drip programs. Zone run times from 1 minute to 12 hours per zone. 10% to 200% water budgeting. Skip day, set day, and odd/even day programming capability. Manual off/rain switch. Perpetual calendar. Compatible with rain sensor technology. Input: 120 VAC (volts alternating current); output: 24 VAC. Homeowner friendly.