Digital Programmable Garden Timer Irrigation System Controller: SIMPLE AND FLEXIBLE PROGRAMMING: Sprinkler for yard allow wider range of run time and interval. Set Duration : 1s to 99min Irrigation interval : 1h up to 15 days. Easy to Connect - drip irrigation system, sprinkler and mist system.(Hose Tap Connection :3/4 Internal Thread;Water Outlet :3/4 Internal Thread) ALL-IN-ONE LARGE SCREEN&OVER 6 MONTHS WORKING TIME: 3″ extra-large HD screen make everything clear at a glance. Power Saving: sleep automatically after 30s if soaker hose timer not operated after 30s. Operation Power Input : 2x1.5 V AA Alkaline batteries (Not Included) INTELLIGENT POWER&MULTI-FUNCTION: Manual mode allow instant watering use without interrupting your set irrigation program. Rain Delay mode will pause your program for an interval to avoid overwatering and unnecessary waste and save much water in rain days (manual Mode). Accurate timing display in manual mode.