Programmable start/stop time and spray interval with settings for light, medium and heavy. Automatic setting sprays every 15 minutes, 24 hours a day, for 30 days. Dispenser features LED service and battery reminders. Operates up to one year on two C batteries (sold separately). Material(s): Plastic; Color(s): Gray/White; Depth: 3 1/4"; Height: 9 1/2".