This Indoor and Outdoor Wi-Fi Enabled High Water Alarm Indicates Visually and Audibly When Level is too High (90db horn). The large (1 inch) LED Indicator Light is Visible from Hundreds of Feet Away. It Can be Used in Sump Pumps Water Tanks Lift Stations Low Density Oils and Sewage Water. This Product Comes with a 6 Ft. 3 Prong Grounded Plug and a 10 Ft. Tethered Water Boss Float. Product Activates When the Water Level in the Basin or Sump Rises Above the Desired level. The Head Unit Location Should Allow Line of Sight Visibility of the Indicating Light from the Desired Vantage Point. The Sound is Directional and Like the Light Be Pointed to a Designated Location. Product is Ready to Operate out of the Box Including Four Rear Mounting Holes Mounting Feet Wall Anchors Hardware and Wire Ties to Simplify Installation.