2 Pcs Water Line Pipe Sensor

these are pipe sensors, they are used to detect water in the water line, there is carbon inside these sensors which  touch the water, an 8 mm hole has to be made in the pipe to be placed on top of the pipe, sensor pipe clamps over non-perishable carbon, one feet copper wire, rubber ring for water leakage.     suitable-all type water level controller matirial-plastic,carbon color-red warranty-1 year packing size-13 x 6 x 6 cm