A Clavis is a special silvered vambrace, a piece of armour granted to Space Marines upon becoming a Deathwatch Keeper. Created during the Dark Age of Technology, the workings of the clavis are not fully understood by the Adeptus Mechanicus, but it is known that it interfaces with the Space Marine's nervous system and monitors his vital signs. The clavis acts as a unique and complex key that contains a myriad of Inquisitorial override codes and other, more arcane systems that allow it to bypass nearly any technological seal.?

沉思臂鎧是一種特殊的鍍銀前臂鎧甲，一名星際戰(zhàn)士成為死亡守望的一員后，就會(huì)被授予這樣一塊鎧甲。沉思臂鎧是在黑暗科技時(shí)代被創(chuàng)造出來(lái)的，機(jī)械修會(huì)也無(wú)法完全理解它的工作原理，已知它會(huì)與星際戰(zhàn)士的神經(jīng)系統(tǒng)相連接并監(jiān)控星際戰(zhàn)士的生命體征。沉思臂鎧作為一把獨(dú)特而復(fù)雜的鑰匙，包含了無(wú)數(shù)審判官的超馳密碼，以及其他的更為神秘的系統(tǒng)，這些系統(tǒng)可以繞過(guò)技術(shù)封印。

The clavis communicates with light, vibration, and other, less-known means to unseal magnetic locks and shield barriers at the Keeper's command. Servitors and other autodefences register the Keeper as a friend and stand down in his presence. The clavis is what allows a Keeper to walk his vigil undisturbed and reach nearly any secure zone.?

沉思臂鎧利用光，振動(dòng)和其他鮮為人知的方法進(jìn)行通訊，能在使用者命令下開(kāi)啟磁鎖和屏蔽圍欄。機(jī)仆和其他自動(dòng)防御系統(tǒng)會(huì)將使用者注冊(cè)為友好對(duì)象，會(huì)當(dāng)著使用者的面退下。沉思臂鎧允許使用者不受干擾得進(jìn)行監(jiān)視，并到達(dá)幾乎任何安全地帶。

Watch Masters of the Deathwatch are also armed with this device.

死亡守望的守望之主（機(jī)仆：俗稱(chēng)守望指揮官）也配備此類(lèi)設(shè)備。