J'ai trouvé la règle! C'est bien +1b de façon générale. P171 EOE core book.
THE RIGHT TOOLS FOR THE JOB
In the Edge of the Empire system, each unique piece of gear does not always provide a unique bonus to gameplay mechanics. This is due to the narrative nature of the system. Instead, many pieces of gear aid the user in difficult tasks. A pair of macrobinoculars may make seeing something far away easier, for example. Whenever a character uses a piece of gear to aid in a task he could perform anyway, the GM and player can agree to add ■ to the dice pool.
Sometimes, gear allows tasks that would be impossible otherwise. For example, two characters can communicate via comlink when over 100 kilometers apart, which would be impossible normally. In these cases, the gear does not add additional bonuses, as it is simply enabling the task to occur in the first place.
Finally, some pieces of gear do offer specific bonuses or benefits in certain situations. In these cases, the benefit and when it applies is listed in the entry. This is in addition to the benefits described in the prior two instances.
