Intelligent irrigation computer: irrigation duration varies from 1 second to 99 minutes and frequency from 1 hour to 15 days. 3 separate irrigation systems : By setting the 3 independent irrigation programs, you can save your watering schedule. Each watering schedule can set different watering frequency and time, allowing you to adjust the watering time more flexibly and better meet your needs.< /p> Automatic rain sensor: The top of the smart timer is equipped with a rain sensor sensor chip. If the chip comes into contact with rain, watering will automatically be delayed until there is no more water on the chip. < p>Manual watering and child lock: the manual button allows instant and flexible watering without interrupting the established irrigation program. The child lock allows you to lock the timer to prevent accidental modification of the programmed parameters. Special attention: lithium batteries are prohibited. Two 1.5V alkaline batteries should be used. CROSOFMI digital water pipe timer has passed the necessary certifications, such as CE, UL, FCC , RoHS, etc., 100% non-toxic and odorless. Make sure the water flow does not get dirty while the timer is working. Setting up auto sleep &amp; IPX5 Waterproof The screen will automatically sleep if not used after 30 seconds, less battery consumption = save money.< /p> Pressure in IPX5 Waterproof greatly prevents measuring internal leaks. Parental Controls Press for 3 seconds to turn on or off. Simply disable the buttons to avoid accidentally restarting the program. Resists water pressures up to 116 psi This irrigation timer with new pneumatically sealed components and reinforced nylon top connector to 30%, more impact resistant and resistant than ABS, withstands water pressure up to 116 psi to significantly eliminate internal leakage. &gt; Waterproof battery case with internal rubber ring around the cover that protects the batteries inside. Watering timer Automatic watering timer Meet your additional request Watering duration: 1S-59S; 1MIN-300min. Watering frequency: 1 a.m. to 11 p.m.; 1 day to 15 days. Set a simpler and wider run time and interval range. Manual watering Do you want to give your plants an extra drink beyond the scheduled time? Then select manual watering mode and set a watering duration of 99 min 59 sec, allowing you to start watering immediately without stopping watering by default. < p>Easy setup For trouble-free operation, a stainless steel strainer is already installed in the connection. All you need to do is insert a washer into the faucet connector and turn the swivel top connector by hand. Fixed 360. Long battery life Powered by 2 alkaline batteries (NOT included), ultra long operating time up to 6 months. &lt;/ p&gt; Low battery indicator reminds you to change the battery in time.