Prevent water damage from flooding and leaking washing machines. This washing machine leak detector will detect a leak, sound an alarm, and automatically turn off the water supply to the washing machine to prevent further damage. This water detection unit can be easily installed in about 10 minutes. Install in Minutes! Kit includes everything you need to protect your property: 3/4" Motorized Ball Valves installed on both hot and cold water inlets. 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 Signal Output:1 Normally Open, 24 Volt / 2 amp rated Straight Motorized Ball Valves (2): CNC machined with straight connection. Motors operate at 6VDC. AB1953, UPC, CUPC, NSF61 cert. Rated 0-180 PSI. Max 250 PSI. Solid brass. 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.