Depot monitoring tells you what went into the tank before departure. It tells you nothing about what happens to that fuel once the vehicle is on the road. For long-haul and logistics fleets, the biggest fuel losses often occur in transit, and they are invisible without live monitoring on the vehicle itself.

A fuel level drop alert tells you that something happened. It does not tell you who did it, how, or whether it was theft, a leak, or an unauthorised fill. Without video tied to the same timestamp, you have a financial loss and no way to act on it.