Absence Of Water Detector - 2808 SeriesThese products are all Made to Order Which means they are non cancelable and non refundable Description Absence Of Water Detector The 2808 Absence of Water Sensor is a totally new innovative design that helps monitor the level of water and other non flammable liquids. The GRI 2808 is submersible, fully self contained and responds reliably to the absence of or the presence of water. The sensor fits a multitude of applications in a wide range of