A water timer is an electromechanical device that, when installed on a water line, uses an electromechanically operated ball valve or an embedded (solenoid) valve to increase or reduce water flow. It's used with irrigation sprinklers to create an automated or non-automatic sprinkler system that can provide exact amounts of water on a regular basis. This item is convenient and easy to use as there are no batteries required to use it. The watering time could be adjusted from a minimum of 5 minutes to a maximum of 2 hours.