Siemens 7ME3950-5LK21

Ultrasonic transit time Sensor Clamp-On, High Precision, Size B1H, paired, dedicated, Ex Zone 0,1,2, Class 1, Div 1,2, for steel pipe, Liquid, Pipe wall thickness from 2,0 - 3,0 mm (0.08 - 0.12 in), Best Temperature >80C (>176F) max. -40C - +121C/-40F - +250F Housing Polyetherimide/StSt corrosion resistant, incl. Couplant 7ME39600UC20 and sanding block for FST020, FST030 (FUS1010)