4 Zone, B-Hyve Smart Wi-Fi Indoor Timer, Control Watering With Their Android Or iOS App From Anywhere In The World, Perfect For New Installations Or Replacement Applications, Can Be Set Up To Adjust Watering Based On Local Weather To Avoid Waste & Deliver The Right Amount Of Water To Your Plants, Uses Weathersense Technology That Provides Smart Watering Based On Site Conditions Such As Slope, Soil Type, Sun/Shade, Historical ET & Live Weather Feeds, Functions With Or Without Wi-Fi Connectivity By Storing App Set Programs On The Timer, Built In Manual Watering Override At The Timer, Built In Fault Detection & Surge Protection & Convenient Plug & Go Line Cord & Transformer, Works With Amazon Alexa For Voice Control, EPA Watersense & SWAT Certified.