The Detonators of a Launcher defines when the projectile explodes.

Please note, these names and descriptions are directly from the game!

Tier 1 Tier 2 Tier 3 Description Range
ContactContact Improved Contact Advanced Contact Pressure-sensitive detonator that explodes on contact. All
ManualManual Improved Manual Advanced Manual Offers manual detonation after firing. All
TimedTimed Improved Timed Advanced Timed Uses a timed fuse to explode 5 seconds after firing. Short to Medium
None ProximityProximity Advanced Proximity Detonator with a proximity-based motion detector that explodes when enemys come within range. All