Deathwatch Scout Armour from Rites of Battle question: Infinite dosages?

By LETE, in Deathwatch Rules Questions

Hiyas!

Under the description of the Deathwatch Scout Armour in Rites of Battle there's a device (an injector) which delays the Stunned condition for a number of turns. I was wondering if this device has a limited amount of dosage or is it pretty much "infinite" (ie., every time a SM is Stunned it kicks in, no matter what)? I can't seem to find any answer.

Thanks!

L

Effectively infinite. I imagine only very small amounts of potent drugs are used at a time. If the marine was stuck on a planet for months or years, or was in insanely heavy combat, I'd consider having the anti-stun run out.