The iRobot Seaglider is the long-range, high endurance unmanned underwater vehicle. Seaglider is designed for missions lasting many months and covering thousands of miles. Seaglider measures temperature, salinity and other quantities in the ocean, sending back data using global satellite telemetry. Seaglider collects ocean physical properties and performs various other missions for oceanographers, including the U.S. Navy, government agencies and research organizations.