[COMPLETE CONTROL VIA APP] When the WiFi water timer is connected to WiFi (2.4Ghz WiFi only), you can simply program it and manage your watering schedule via Smart Life App (Android, iOS) from any time and anywhere. No need to worry about watering plants when you go out for a business trip or travel. [METAL THREADED COUPLING & DURABLE] This WiFi water valve has metal threaded coupling, which is sturdy and durable. Instead of plastic thread, the plastic one can not hold the water pressure back. It is easily broken and leaking. [Caution: The metal threads are sharp, please use adjustable plyers or wear gloves to screw/unscrew them!] [KNOW THE FLOW & SAVING WATER] The built-in flow meter allows you to track water usage, and can be measured by the liter or by time ideal for all kinds of applications, including watering plants, gardening, washing your car, filling your pool, and greenhouse/hydroponics. If the WiFi hose timer has no water outflow, the APP will notify you of "Lack of Water". [WATERPROOF & EXPANDABLE] The smart water timer has an internal waterproof design and uses stainless steel screws, which make sure it no rusting. With an expandable system, one WiFi hub can be equipped with 8 SCCES sprinkler timers. You can add additional smart timers to create multiple watering zones in your yard. (Sold Separately) [EASY TO INSTALL & USE] Setup is very easy and simple, you just download the "Smart Life" app from App Store or Google Play, and create an account, then install your WiFi hose timer at your hose faucet, then program your water timer in minutes.