A military device that is grafted to a soldier's non-dominant forearm. The device provides the command unit with medical and location data of a soldier at any given time, while also providing many tools to the soldier. It has a bay of liquid metal that the soldier can form into a number of tools or weapons, as well as sensors for scanning the surrounding area for potential danger. 

The biosensor also is the central link for all the other equipment issues to a soldier. The soldiers interact with the sensor unit through the embedded touchscreen or microphone to issue commands.

Appearance wise, the biosensor is a dull metallic cylinder with little detail.