Subsea equipment refers to specialized tools and machinery designed for use underwater, primarily in the oil and gas industry. This equipment includes items like remotely operated vehicles (ROVs), subsea pipelines, and wellheads, which help in the exploration and extraction of resources from beneath the ocean floor. These tools are engineered to withstand high pressure and harsh environmental conditions found at great depths. They play a crucial role in ensuring safe and efficient operations, allowing companies to monitor and maintain underwater installations while minimizing risks to personnel and the environment.