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A '''Null Rod''' , also called a '''night rod''',{{Fn|5}} is a type of [[Power weapon]] used by members of the [[Ordo Malleus]]'s [[Daemonhunters]]{{Fn|1}}and [[Black Sentinels]] of the [[Adeptus Astra Telepathica]].{{Fn|15}}

These obsidian rods constantly crackle with anti-[[psychic]] power which nullifies the powers of the [[Warp]]. However, this device also prevents the wielders themselves from making use of any psychic power.{{Fn|1}} It can also be used to deal blunt force as with a club or a truncheon.{{Fn|3}} These weapons appear as empty spots in the warp to psykers and cause a suffocating psychic suppression at a mere touch, causing them to seize and likely become incapacitated.{{Fn|5}}