Energy shield test station

The shield tester, nicknamed the "zapper", is a piece of machinery used to bring online inactive MJOLNIR armor energy shields as well as to test them. Though the device charges shields, they must be activated by the wearer.

Trivia

 * The Pillar of Autumn's tester produces the same noise as an overcharged plasma pistol. This could be due to time constraints and a lack of a unique sound for the tester.
 * In both Halo: Combat Evolved and Halo 2, is possible for the player to stand outside the shield tester yet experience its effects as normal. However, the player will still be unable to move while the device is active.

List of appearances

 * Halo: Combat Evolved
 * Halo 2
 * Halo: The Fall of Reach
 * Halo: The Flood