Microwave RFID Timing Transponder.

The small microwave tag has the greatest range, accuracy and fastest tag detections for quick data transfer. The battery lasts five years, regardless the number of events timed. The size is just 1 inch by 1 inch by 1/2 inch. Additionally, it is used to track bullet trains in Europe and Japan. It also has the fastest read rate on the market with over 200 mph speeds and is excellent on metal and is unaffected by EMI (electronic magnetic interference). 

This is the tag of choice for the military and  is used for military fitness assessment tests. The tag is another unique design by Orbiter. It is always “on” and does not need to wake up like other active tags. This means it is the most responsive (quick to time) active tag on the market.