Details:[Specific Use]Water timer is a device that can be connected to the watering system. It can be programmed to open and close the watering system at a specific time. Using a sprinkler timer for watering your garden will save water and is very environmentally friendly . Friends who like to travel and vacation can't water on time; this automatic irrigation timer can solve the watering problem very well.[Advantages]Compared with most hose timer on the market; our irrigation controllers are equipped with waterproof gaskets at each screw interface; which can effectively prevent the internal metal from rusting&oxidizing. And in order to protect the LCD display screen; we specially parity configure screw cover. The most important thing is that we have equipped each timer with a corresponding nipple diverter; so that you will not spend any extra time directly after purchasing the product.[Function Introduction]The function of the row of buttons below the LCD display screen-----(1) "▲" forward key; "▼" back key (2) "SET" confirm key (3) "" current time key ( 4) "TIME" set the current time and date (5) "PROG" set the watering program (time interval can be set; the default time is 15 minutes; the minimum irrigation is 1 time a day; the maximum is 16 times; the longest is 1 time in 3 days) (6) "ON" turn on key; "OFF" turn off key. Please try it; the operation will be very simple.[Power Supply Setting]Please note that our irrigation timer does not include a battery. It only needs to configure two 1.5V AAA dry batteries to run. When installing the battery; please make sure that the wire of the battery box is aligned with the internal wire slot to facilitate battery loading and unloading. If the program does not respond; please check whether the battery power is sufficient; the timer will not be activated if the power is insufficient.[Warranty and Customer Service]This product has a 7-day return time and a 3-month warranty. We provide lifetime free customer service. Please note: When connecting the timer; check whether the size of the faucet or hose is consistent; whether the battery has electricity; and the water pressure is appropriate to avoid water leakage. If the program does not respond or leaks during your operation; please feel free to contact us. Customer satisfaction makes us happy.