【Note】 First of all, thank you for ordering this sprinkler timer. If you find that the meter clock resets constantly, please replace the battery with another brand that has a slightly longer positive terminal. We have found that some brands have a battery positive terminal that is too short to fit the meter positive clip well and has no power. Another solution is to add a small steel clip to make the battery positive pole fit well. 【Digital & Automatic Program】AMTAST water timer allows for a wide range of run times and intervals. The watering duration ranges from 1min to 23h59mins, and irrigation interval from 1min to 7 days. That can make you watering schedule fully customizable. 【LED Display &Easy Operation】This irrigation timer sprinkler timer equipped with LED display, which can clearly display the set parameters. This hose timer is simple to program by the dial and easy to install which is no need for tools. Just set the start time, watering duration and frequency, and it will run as your setting schedule. 【Widely Application】The outdoor sprinkle timer is deal for gravity drip irrigation system, garden irrigation watering, lawn sprinkler controller, greenhouse mist system, pool, etc. 【Manual Watering Mode】When you need water in an emergency, you can activate the manual watering mode to water your lawn and plants instantly. Activating the manual watering feature will not affect the scheduled watering schedules to run. 【Waterproof & Durable】This irrigation timer with IP55 waterproof, the top connector has a 1/2 " - 3/4 "universal thread and fits most hose fittings. It is made of high durable and strong material, which makes the water timer more impact and abrasion resistant than ordinary plastic.