Echo Tracker are light wieght radar systems. A single soilder may carry one with ease. It is best used in ops with very little visabilty.
With the Echo trackers light wieght and mobility, soilders may use handheld modles or versions built into they're armor. Built in modles show the data on the inside of the person's visor
It works by sending out a pulse that cannot be heard by human-oids. The pulse bounces back off of any surface within 50' and goes back to the device. A computer which is magically made extremely small and light. The data is then displayed either on a handheld device, on a greave, or on the visor of a soilder's helmet. This allows the person to see the enviroment and any life-forms which are shown as green dots.