The Dead Man's Trigger auto-detonates all of your planted explosives when you are killed.
— In-game description.
Dead Man's Trigger is a Tier 2 Pilot Kit that appears in Titanfall. This will detonate all Satchel Charges or Arc Mines placed by you 1 second after you die. This Kit can be useful to Snipers as it'll allow them to kill or at least heavily damage someone who manages to sneak up on them by placing Satchel Charges nearby.