Alister is an autonomous underwater vehicle produced by ECA Robotics. Four variants of the AUV have been produced:
Alister 9 - man-portable AUV
Alister 18 - High resolution, high coverage AUV
Alister 18 Twin - Multi-role Inspection AUV
Alister 27 - a Multi-mission, long endurance AUV
The AUV is a component of France's SLAMF program and has a variety of intended missions including hydrography, organic mine warfare support, rapid environment assessment, covert reconnaissance, and mine countermeasures.