As a hang glider, a collision with an aircraft could ruin your day. Because of the limited maneuverability with a hang glider, carrying a complete FLARM system would not be feasible. Even if you were alerted of an imminent collision, there would be little you could do. For this purpose, there is a special FLARM module for hang gliders. The module alerts other aircraft of your position, so they can keep their distance. The module works autonomously without needing your attention.
The following FLARM devices are available for the hang glider market: