The HT980 is ATEX certified and fully submersible - The unique and advanced HT980 conforms to all aspects of the European ATEX Directive. It further exceeds the ATEX requirements by being completely submersible to 5 metres depth for up to one hour - all other radios in this class are merely splash proof. The HT980 has a unique conductive polymer enclosure negating the need to use a conductive carry case. In the harsh world of maritime and terrestrial high-risk environments why compromise?