ISM Series Irrigation System Manager The complete irrigation system manager for up to 9 valves (watering stations), the ISM timer is remarkably easy to program while offering advanced features for precise watering control. Common schedules can be programmed with one-touch convenience. More sophisticated programming can be done quickly and simply by following on-screen prompts at each point of the dial. Other timer engineering advances include water-saving Rain Sensor and Seasonal Adjust™ features, fuse-less surge protection plus three independent programs to manage watering needs for multiple planting areas. Made in North America by Rain Bird, the #1 brand of underground irrigation products, each timer is constructed with top quality, professional grade components. Among the most user friendly timers, all ISM models include simple instructions with quick reference guide and programming chart for extra convenience. Features and Benefits: Total Irrigation System Manager 3 easy-set programs independently control watering parameters for different lawn areas, planting beds and drip irrigation systems. Engineered To Save Water Apply just the right amount in each area, avoid overwatering. Selected models also include Automatic Rain Sensor. #1 Brand For Professionals Use timer technology developed for professional landscapers. Superior Surge Protection Guard against damage from power surges. Pre-programmed Schedules Simplifies programming Seasonal Adjust Feature Easily increase or decrease the amount of water applied by season without changing programs Fuse-less Surge Protection No fuses to replace Maximum Number of Valves Controlled Matches system size, allows future expansion Advanced Testing and Diagnostic Circuitry Auto alert and bypass of problem valves Dimensions 7" w x 6" h x 1-1/4" d