These irrigation timers are designed to permit one to 44 "ON" operations every 24 hours and provide watering increments down to 12 minutes or up to 20 hours and 45 minutes to ensure proper watering increments. These models also allow for biweekly scheduling with the convenient 14-day skipper for maximum water conservation and odd/even day compliance. 24 VAC, 60 Hz. Color: Grays.