What is a BMS ?

A Building Management System (BMS) is a comprehensive computer system designed to aid with building management. Once installed, the BMS communicates with all of the equipment and systems currently installed in the building.

With integrated building management systems, owners can monitor and manage core systems, such as air conditioning, heating, ventilation, lighting, or energy supply systems. Dealing with multiple energy sources, such as electricity, gas, and rooftop solar panels. A good BMS system integrates each system individually, giving owners complete control over each supply.

The term building automation system (BAS) is also sometimes referred to as BMS, highlighting the fact that a BMS rarely requires active input once set up correctly and is largely automated. However, an integrated building management system is more often used to refer to BMS systems applied on a larger scale, e.g. to condominiums, tertiary buildings, and public buildings, as part of a full-fledged automation and controlled computer-based system.

Technician using a tablet to control Building Management System (BMS) via a mobile application.

How does it work?

A BMS system operates by gathering data from buildings sensors and equipment, processing it centrally, and issuing commands to regulate building systems based on predefined criteria and user inputs, utilizing interconnected hardware and software components.

With a BMS, a building manager or owner can do more than simply monitor performance. Operators can optimize individual systems, such as monitoring and control functions for air conditioning or other systems to use energy more efficiently and to reduce costs. Owners gain a global vision of their building's performance and turn them into smart buildings, all whilst reducing their administrative tasks and increasing energy savings.

bms network diagram

Building management equipment and systems have gradually transformed into an agglomeration of incompatible components and impenetrable architectures that form a barrier between buildings and the modern software industry. This is where Wattsense come in so that all those concerned about the energy consumption of buildings can easily implement building management solutions.

Louis VermorelCEO of Wattsense

What is its role ?

A BMS provides for targeted systems management. With it, owners can analyze current performance, set and adjust targets for different systems, and fine-tune each system to achieve those targets.

Building Management System (BMS) diagram illustrating centralized control and integration with building equipment.

Daily, building management systems allows to :

Control of the different building systems

Real-time monitoring: HVAC, air quality, humidity level, noise pollution

Regular reporting and operations scheduling

Break-in and alarm monitoring and reporting

Energy management system for consumption optimization and improved efficiency

Produce data reports

The Wattsense Solution: a low-cost way to set up or renovate your BMS

Despite their utility, traditional BMS solutions are outdated, expensive, and often unsuitable.  In many cases, they are only compatible with certain systems in a building and are not able to integrate with the wide range of system providers today. The complex nature of these old systems requires costly service providers to set up and maintain them.

With the advent of IoT (Internet of Things) and smart building technologies, today's BMS solutions offer a modern and affordable alternative for small and medium-sized buildings.

At Wattsense, we break through chaotic infrastructure with our IoT connectivity solution and provide access to the BMS to all building operators. The Wattsense allows small and medium-sized buildings to create a BMS network and access their equipment by removing technical complexity.

Installation of a building management system by a qualified technical team

We have developed a cost-effective and easy-to-deploy building management system solution that communicates with many protocols (LoRaWAN, BAC net IP, Modbus IP, Modbus RTU, M-bus, LON, KNX, LPB, and Diematic). Our solution allows operators to connect to and communicate quickly with all the equipment and systems in a building, even old equipment that was previously not connectable with building management systems. Our solution provides for on-site conversion of old data so that it can be read cleanly via our system interface. The solution also works with any existing BMS or other third-party applications.

Wattsense designed this building management solution to simplify BMS. Now you can view and monitor your building remotely through a single interface, whether you are dealing with a modern, cutting-edge building design or a legacy until with older systems.

Seamless integration with all network communication protocols used in building management systems

Leveraging IoT technology, Wattsense's BMS provides real-time monitoring and control of building systems, resulting in substantial energy savings. The big advantage of our solution: there's no need to change your building's equipment, as we're compatible with all brands and protocols. This not only reduces operating costs, but also contributes to a more sustainable environment.

Cyril MathéAccount executive at Wattsense
Cyril Mathé

Our products to simplify BMS

With a single hardware, the Wattsense computer-based control system solution can be used as two products depending on your needs :


Collect data on-premises or through your private Cloud network.

  • Live data
  • Configuration
  • Logs
universal gateway that solves connectivity problems in buildings and connects equipment to BMS

Solve your connectivity problems

Explore the Bridge


Set up alarms, graphs, and schematics. Collect data and communicate with your equipment remotely.

  • Dashboards
  • Graphs
  • Live data
  • Alarms
  • Configuration
  • Archives
  • Logs
connectivity solution providing dashboards displaying building management system performance data

Make sense of your building’s data

Explore the Tower

Why implement or retrofit a BMS?


of the world's energy is consumed by buildings. With the growing focus on energy management systems, renewable energy, and an overall focus on energy efficiency, there's never been a better time to adopt a BMS to ensure that your building's energy usage is optimal.


increase in energy consumption without a modern BMS. This can be the result of a poorly configured BMS, or no BMS at all.

That's why building management systems are becoming the norm around the world.

By 2025, building automation control systems (BACS) will be mandatory in all commercial buildings in the EU. It's part of a growing push to increase building efficiency while boosting energy performance.

The challenge for the building industry, from property owners to facility managers, is to equip themselves with the best control systems that can be quickly installed and configured to comply with these regulations in the shortest possible time. A modern BMS solution needs to be fully compatible with older systems, while also fully integrated with the new world of the Internet of Things (IoT). This allows the BMS to be deployed on any building in an owner's portfolio, from legacy units to new builds making such systems very versatile for building maintenance across the industry.

We prioritize user experience by offering an intuitive platform that simplifies building management. With the Wattsense solution, connecting devices is remarkably easy thanks to its intuitive interface and configuration assistant, making building management accessible to everyone.

Brienda DuvalCustomer Success at Wattsense

Add value to your building with the Wattsense solution

Save energy

Our next-generation BMS solution helps improve the environmental impact of your buildings, boosting energy efficiency and reducing the building's carbon footprint. Owners can quickly deploy Smart Building applications and software to enhance equipment performance, optimize operating costs and reduce their energy bills.

Energy management applications and software can significantly reduce the energy consumption of buildings. However, integrating diverse applications and software with the building's BMS often proves to be a real obstacle.  Our solution works as an intermediary software program, an abstraction layer that goes on top of the existing infrastructure of the building BMS system. The end result is that the building can use the best energy management software to maximize energy efficiency.

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Keep building occupants comfortable

The environmental impact goes beyond energy efficiency. HVAC systems are also integrated into the Wattsense BMS. Building managers can set temperature controls in one location, while also monitoring how different settings impact overall energy use.

Most importantly, managers can use the BMS to ensure that occupants are kept comfortable without sacrificing efficiency, by easily controlling diverse air conditioning and heating thermostats from one central location. You can even correct temperature control failures in a building management system, preventing discomfort and frustration for occupants.

Many buildings, even those of recent construction, are plagued by erratic and unpredictable temperature control problems. New, flexible, and affordable building management solutions like the Wattsense solution change the game for building managers and improve the lives of building occupants and visitors.

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Optimize maintenance

A BMS can monitor equipment and equipment performance as well. Wear-and-tear and regular maintenance issues can be detected early and repairs scheduled in advance. With a BMS, facility management companies or technicians can even remotely monitor and control your building's equipment to optimize performance and maintenance.

Heating, ventilation, and air conditioning (HVAC) systems demand high quality service. Several times a year, they need preventive or corrective maintenance, and our solution allows technicians to assess and resolve any problem quickly and remotely.

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Control energy demand

Unifying control of energy supply systems, HVAC needs, and other building systems grants operators full control over a building's energy demand. By optimizing your heating and cooling needs, you will have a highly positive impact on the electrical grid and global energy demand without disrupting the operation of your facilities and buildings.

Power grid operators must balance the demand and supply of electricity. The transition to renewable energy sources is a historic global challenge for them. While traditional energy sources (gas, coal, nuclear, etc.) maintain a comparatively stable supply, renewable energy sources are often highly variable. That can lead to significant fluctuations in energy supply, and pose a challenge to building management systems and building managers.

Energy demand management is a proven solution to reduce the need for energy consumption when supply cannot keep up. It reduces the power grid size while maintaining service continuity during peak demand.

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Get granular

Building system management isn't just about the profile of the building as a whole. Individual sensors and indoor/outdoor monitors allow a BMS to control certain sectors or rooms of the building individually. This allows for greater customization and control, with detailed data generated on individual aspects of the system.

Integrate security systems

Integrate safety and security alerts into your building’s control system. With a BMS, automated alerts can be set for security alerts or various safety alarms, from access control to video surveillance. This could be internal alerts as well - for instance, a temperature alert set in the building’s server room, or even integrated fire alarms.

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"The Wattsense solution offers us flexibility in the face of various problems, such as complex networks and multi-technologies."

Arnaud RocheProject Manager at EKIVOLT
gray building
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"Wattsense brings transparency and openness to the Smart Buildings sector"

Fabio MunarettoCo-founder of Kocliko
brown concrete building during daytime
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The simplicity of the Wattsense solution has allowed us to intervene quickly in private areas and, therefore, to avoid inconvenience to the residents. In addition, the subscription cost makes it possible for us to respect the customer's budget.

Quentin Yayon-SaintagneCommercial Engineer at CYRISEA
brown 4-layer bricked building

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