Parking Sensor, the true heart of the system

Projects the classic on-street parking management into a new universe of functionality and efficiency.

How it works

⭕️ The sensor, once positioned and calibrated, allows to detect the presence of vehicles parked in the parking space.

⭕️ The technology tracks the changes in the earth’s magnetic field generated by the presence of a calibrated iron mass of an object such as vehicle.

⭕️ The free/busy status is then transmitted by radio, by a communication network, to the central server.

⭕️ From the central server POLIS management software will process by combining it with any payment transaction and make it available to all stakeholders.

Advanced technologies for your city services


First world LORA ALLIANCE certified sensor

We are the only LoRa Alliance partners to have certified the sensors according to the international protocols. A guarantee of quality and reliability towards our interlocutors.

See all LoRa certified products




The sensor traks an anonymous data on the basis of the changes in the earth’s magnetic field, unlike cameras that can only record images.

First Narrow Band IoT sensor implemented in Italy

Thanks to our research and technological curiosity, we have created and installed on the road the first European Smart Parking sites with NB Io technologies.

Check out this page for more info


Positioned under road surface

  • Allows perfect road cleaning with brushes or with bulldozers and snow plow.
  • Allows the asphalting even if it is not necessary to remove the pre-existing asphalt layer.
  • It completely prevents any vandalism.
  • Fully respects the aesthetics of our cities without weighing them down with unnecessary devices on demand.

Italian engineering

Since our first installation in 2005 we test and calibrate succesfully sensors’ technologies, together with great players of telecommunications.

The value of knowledge


A very human parking sensor

Thanks to its communication systems it can be used for recognition, always through smartphones and App, of persons authorized to use that kind of specific parking place.

For example disabled persons, authorized person for loading and unloading, residents, other specific categories.


Buried sensor

We have chosen underground magnetic technology based on the direct experience acquired during the first years of activity:

  • easier maintenance;
  • aesthetically better;
  • more safety.

Economical and practical

The installation is therefore extremely economical and practical (it is not necessary to break roads for cable laying). The result thus obtained become guarantor of the safety of pedestrians, cyclists and motorcyclists who don’t run the risk of tripping, falling or be hurt.


Doesn’t require wiring

Doesn’t require wiring and is positioned under the asphalt with a simple drilling operation. After having been covered with asphalt, turns out to be completely invisible.


Advanced communications

It can also be equipped with a radio device that communicates directly with the Bluetooth of the common smartphones currently on the market.

This device allows to receive directly in the App the number of the parking place where the car is parked without the need of typing it manually.


Constant development

Since 2005 we started to face all the potential critical issues that could arise in installations of parking sensors.

The result is a very versatile device, with great efficiency and unique value for money.


Which other devices could be used to receive data from the parking bay?

The cameras are a valid detection system that allows you to receive data and insert them into our Smart Parking Systems.

In the commercial installations we have made, we have always evaluated the most advantageous opportunity for our client, who according to the type of territory must use an appropriate technology.

An example is the case of open spaces that are not covered by obstacles which therefore offer good visibility of the manned area, in this case we recommend using the camera

Why not visible sensors or flush sensors?

The so-called “sensors at sight” or “flush”, are devices that can, in fact, use different detection technologies (magnetic, infrared, radar, etc.).

They are not efficient because:

  • can be damaged by vandalism:
  • can create problems for pedestrians, cycles, motorcycles;
  • the aesthetic impact may conflict;
  • difficult road maintenance;
  • asphalting is impossible.

Related solutions

4Park - Smart Parking App

Central Server

Management Software

Parking meter

Smart Parking

A solution to make efficient and profitable the parking management on cities streets