Active Camouflage (D20 Modern Equipment)
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A creature or character with Active Camouflage integrated into his armor can become invisible as a free action. This functions as a cloaking, except as noted below:
Partial camouflage: This type of active camouflage lasts for one round, but can be reused one round after activation.
Full Camouflage: This type of active camouflage lasts indefinitely, and can be used one round after the effect ends. The user can deactivate the device at will (a free action).
Active Camouflage has a purchase DC of 40 with a restriction of Mil (+3), and weighs 10lbs.