B-type insertion sensor (direct insertion) A pair of insertion-type transducers are ... outside diameter or perimeter to the manufacturer.B-type insertion sensor (direct insertion),the parameters as below:Pipe size:more ... :IP68(can work in water, and water depth≤3 meter)Liquid types:Water,sea water.waste water,chemical liquids,oil,crude ... :≤20000ppm,may contain very small amount of air bubbles. sensor