Protection System Kit, Sub Brand: TripleGuard Smart, Type: Wireless, Power Source: (4) AA Batteries, Color: White, Temperature Rating: -4 to 124 Deg F, Size: 3/4 inch Inlet, Includes: Actuator Shutoff Unit for Supply Water Line, (2) Water Leak Detectors, (1) Cloud Connected Hub, (1) Smartphone App, (1) Ball Valve, Battery, Applications: For Automatic Water Leak Detection, Detects Water Leaks in the Places That are Prone to Leaking such as Under the Sink, Near Water Heaters, Washing Machines and other Appliances, Closes the Shutoff Unit and Blocks the Water Supply into the Premises when Leaks are Detected, Designed for all Types of Dwellings and Businesses - Private Homes, Condominiums, Multi-family Apartments, Business Premises and Hotels, Standards/Approvals: FCC Complaints, CSA Certified, NSF/ANSI 61 and 372