Yes, you are 100% right, the range of searching module is within 700 meters. But you've probably missed out that we install hundreds of search modules hidden in the city's infrastructure: traffic lights, hollow posts, couplings of electric cables, advertising structures, under roofs of houses, pavilions, garages, etc.
Thereby, coverage area of the search network includes all the key traffic points - federal and regional highways, all exits from the city, railway crossings, bridges, junctions, garage parking, etc.
So before the car leaves the city, we'll receive dozens of signals from our search modules. As soon as we get the first signal, we start inspecting the territory using both ground and air search devices such as quadcopters. We also have an option of volunteer searching: people who have a SurruS app on their devices, can go and search for the car. If a volunteer locates the car before our search squad does, he gets a reward.
And if even the car can be taken to a place where there are no our sensors, then we have 10 kinds of devices on the machine and one of them works for thousands of kilometers though less accurately than the rest.
Did I answer your question, sir?
ye, thx
Most welcome!
if the car is driven into a van in which there will be a silencer of waves and will be taken to another country?
We catch signals not only from the sensors, but also from the signal suppressors, if we have noticed that the signal suppressor passed by our search module, then it is similar for us that the car passed by.
We begin to monitor this signal suppressor.