"Technical reasons prompted us to use ultrasonic welding instead of screws, because with the new SEEANGEL transmitter we assemble a high-tech safety part.
It is a battery-driven water-tight search-and-rescue-system for life vests. Ultrasonic welding meets our requirements for precision and tightness. Also, when assembled with ultrasonics, subsequent manipulations of the housing are not possible. We were convinced by the accuracy and reproducibility of the weld process which guarantee constant weld quality."