Ultrasonic transit time Sensor Clamp-On, Universal Size E2, paired, Portabel-BNC any pipe materials, Liquid, Pipe Diameter range 254 - 9144 mm (10 - 360 in), Temperature -40C - +121C (-40F - +250F) Housing Polyetherimide/StSt corrosion resistant, incl. Couplant 7ME39600UC20 and sanding block for FST020, FST030 (FUS1010)