A Failsafe Detonator is a powerful Tau explosive device that causes the bearer's Tau Battlesuit to self-destruct in a lethal explosion. This technology was developed to be used in only the most dire of circumstances and was intended to serve as the ultimate expression of the doctrine of the Greater Good. With the pilot's sacrifice, he buys the rest of his squadmates time to withdraw and regroup in the face of overwhelming enemy forces. A Failsafe Detonator is a signature Support System available only to Battlesuit pilots of the rank of Shas'vre or higher. However, the current rarity of this system among deployed Fire Caste units means that its distribution is usually limited to one per Hunter Cadre.
- Codex: Tau Empire (4th Edition), pg. 26
- Codex: Tau Empire (6th Edition), pg. 73
- Deathwatch: Core Rulebook (RPG), pg. 366
- Rogue Trader: Tau Character Guide (RPG), pg. 35