Tracking Scent

The Tracking Scent is a odorless scent created by Agent Jemma Simmons designed as an alternative method to electronic tracking.

History
When the Centipede Group kidnapped Michael Peterson's son and made an arrangement to deliver Ace in exchange of his father.

Coulson's Team applied Michael with the Tracking Scent in hopes of following him and detecting him with a specialized tracking device developed by Agent Leo Fitz, able to detect the scent within a range of 50 kilometers.