Since the environment can cause an infinite number of water hazards, the industry rates Degree of Protection on a scale, and CONEC Sealed D-subs are rated as IP67. That is a very tough environment for electronic devices, and only continuous submersion could be worse, and fortunately, unlikely for the target market. The industry agreed-upon test is immersion in water for 30 minutes, at a depth of 1 meter, with no air/water leakage.