An Early Warning Override is an advanced Tau sensor suite, similar in construction and use to a Counterfire Defence System, that has been calibrated to detect the electronic signatures of teleport beams and orbital-entry jump systems, which allows for the accurate prediction of flight paths and other movement vectors. If such a signal is detected, the system jolts a Tau Battlesuit 's weapons to lock-on status and firing before the target has a chance to react. This Support System available to most forms of Tau Battlesuit.
- Codex: Tau Empire (6th Edition), pg. 68
- Rogue Trader: Tau Character Guide (RPG), pg. 33