What is another word for hydroacoustic range finder?
Pronunciation: [hˌa͡ɪdɹə͡ʊkˈa͡ʊstɪk ɹˈe͡ɪnd͡ʒ fˈa͡ɪndə] (IPA) 
Hydroacoustic range finder, also referred to as underwater acoustic ranging equipment, is used to measure the distance between an object and an observer underwater. This device is commonly used in navigation, military, and research purposes. Synonyms for hydroacoustic range finder include sonar, echo sounder, depth sounder, underwater measurement unit, acoustic distance meter, hydrographic survey equipment, and bathymetric equipment. These terms are often used interchangeably depending on the industry and the specific application needed. Regardless of the terminology, hydroacoustic range finders play an important role in underwater exploration and navigation, allowing for accurate mapping and measurement of ocean depths.
