Balluff is introducing the new Microsonics zws-15 with SoundPipe, an ultrasonic sensor that measures levels even in very small openings. The new SoundPipe can be used with all zws-15 sensors; it directs sound to the measuring point, enabling measurements to be taken through drill holes and openings with diameters under 3mm. Since the zws-15 sensor blind zone is inside the SoundPipe, measurements can be taken directly from the sound outlet opening. The result is a tightly bundled sound field brought directly to the measuring point.