Install in Minutes! Kit includes everything you need to protect your property: 1” Motorized Ball Valve installed on cold water inlet. Water sensor is placed on the floor. Control Unit is mounted with screws or Velcro (included). Optional Power Sources: AC & (4) AA Batteries, or Batteries alone! Technical Specifications: UL listed class 2 wall adaptor, 115AC/9VDC UPC listed Full-Port Motorized Ball Valve: CNC machined. Motor operates at 6VDC. Signal Output: 1 Normally Open, 24 Volt / 2 amp rated Motorized Ball Valve: CNC machined with MIP X FIP. Rated 0-140 PSI. Max 250 PSI. Solid brass. AB1953, UPC, CUPC, NSF61 cert. Rated 32-212 degrees F Sensor: 1.25 X 7.5 inch, double sided. Additional sensors may be added in series. Alarm: Beeping with Mute button.