The USM 23LF is designed for testing materials with high sound attenuation or a coarse-grained structure. This portable instrument is therefore equipped with a powerful square-wave pulser.

The USM 23LF is extremely powerful in spite of its small size and the fact that it's portable. It's equipped with a state-of-the-art LCD providing: high resolution and optimum readability - even in the brightest sunlight, at an unfavorable viewing angle, or from a long distance.