Features: This intelligent digital irrigation controller is not a great aid to the efficient using of water, but also can improve the efficiency of automatic watering. Auto timing watering flower and plants even no one in home that brings much convenience for you. It also has many other advantages: Easy to install and operate, durable to use, low power consumption etc. Besides, it will help you decrease the labor cost. In a word, it's really a perfect watering tool for micro sprinkler and drip irrigation in the garden, yard and balcony. Specification: Power: 12V DC / AC 16A (8) A.250V AC Timing range: 1min-168h. Hysteresis: ≤1 sec / day (25C) Load capacity: resistive load: 16A / 250V AC Lagging load: 10A / 250V AC lamp load: 2000W. ON / OFF operation: 16 ON & 16 OFF. Power consumption: 2VA (max) Display: LCD. Minimum interval: 1 min. Ambient temperature: -20-55C Ambint humidity: 35-85% RH. Dimension: 60 * 60 * 32mm. Operating Instruction: Enter into programming as belows: 1.Press "P" button, setting1 ON time (display 1 on) 2.Press H + / M +, setting hours and minutes. 3.Press D +, to select same every day, or different time each day. 4.Press "P", setting 1 off time (display1 off) 5.Press H + / M +, setting hours and minutes turn off time. 6.Prss D +, if you want the same every day, you ned not press this key, 7.Repeat step 2-6, set 2-16 on / off tim, 8.Press the third button, END. Package List: 1 x Electronic Timer Note: 1.Tim setting should caaroding to the time sequence, could not be set crossly. 2.System with quit automatically if there's no operating within 10seconds and no data is saved. 3.Function 3.4.5 can not be used simultaneously.