Siemens is a pioneer in the use of Lamb wave transit-time sensors for clamp-on flow measurement. We call it WideBeam® – and it increases accuracy by reducing sensitivity to any changes in the fluid. How? WideBeam® technology uses the pipe wall as a waveguide to optimize the signal-to-noise ratio and provide a wider area of vibration. These high-performance sensors are designed for steel pipes, but they also work with aluminum, titanium and plastic.