A Focussed Death Ray is a ferocious Necron armament that is mounted as the primary weapon on a Sentry Pylon. The coruscating beams of force emitted by the Focussed Death Ray are able to slice through entire ranks of enemy soldiers and whole columns of armoured battle-tanks with contemptuous ease.
Utilising an advanced focussing array, a Sentry Pylon is able to project its crackling ray over far greater distances than previously encountered versions of the Death Ray weapon, and with a destructive potential that is horrifyingly effective. When fired, the narrow beam of intense thermal energy fired by a Focussed Death Ray will vaporise everything along its line of fire, and often passes through several enemy units before the energy finally dissipates; leaving nothing but a line of charred ruin in its wake.
- Imperial Armour Volume Twelve – The Fall of Orpheus, pg. 123