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.

A bulk fuel tank holds tens of thousands of rands of diesel at any given moment. Most businesses that store fuel in volume know it is valuable. Far fewer have a system that tells them immediately when that value starts to disappear.