Kongsberg EM 2042 Multibeam Echosounder Small in size, but powerful in potential, the EM 2042 Multibeam Echosounder is efficient, light, robust and reliable: delivering high-density, high-resolution, clean data in the most demanding marine environments. With simple installation and failure free operation, the EM 2042 has been designed for use on a wide variety of vessels. It’s accuracy, versatility and stability, with real/true yaw stabilization, extends weather windows and optimizes survey duration – giving you the data you need, when you need it.