LS-66 Sabre Direct Energy Rifle

The LS-66 Sabre Direct Energy Rifle (DER) is a weapon in Deus Ex: Human Revolution.

Characteristics
The LS-66 does not fire a set number of "rounds". Instead, it uses batteries, which have a charge of 500, which is about ten seconds of sustained fire. While the weapon does have an overheat gauge like the Kaiga M404, it does not seem to heat up when the fire button is held, a possible bug in the inital PC release.

Jean-Francois Dugas, main designer of Deus Ex: Human Revolution says:

"It's a weapon that allows you to shoot through walls so you just have to shoot, really. Combined with the Smart Vision (augmentation to see through walls) it makes for deadly combo. However, I'm telling you right away, it's a very difficult weapon to get..."

One of these are found behind Tong before the mission to rescue his son.