AM304L and AM305L: New LoRaWAN sensors for actionable indoor air quality

In many buildings, HVAC control relies on a partial view of the indoor environment. Temperature is monitored in one place, humidity in another, presence elsewhere, and air quality is not always measured consistently.
With the new AM304L and AM305L, Milesight offers a simpler and more useful approach. These LoRaWAN sensors combine essential indoor environment data into a single device, helping operators make faster, clearer, and more effective decisions.

A clearer view of the indoor environment

In a Smart Building project, a lack of truly actionable data can be a problem. When measurements are scattered across multiple devices, operations lose clarity. Diagnosis becomes slower, automation more difficult to implement, and HVAC decisions can be based on assumptions. The AM304L and AM305L were designed precisely to simplify the reading of the building.

Both models measure:

• temperature,
• humidity,
• presence via PIR,
• light intensity.

The AM305L also adds CO₂ measurement, making it a particularly relevant choice for spaces where ventilation and indoor air quality are key concerns.

Why CO₂ is becoming decisive data

In offices, meeting rooms, schools, shops, or tertiary spaces, CO₂ concentration is a valuable indicator for monitoring air renewal and adjusting ventilation. When CO₂ increases, it can reveal insufficient ventilation in an occupied space. Conversely, constant over-ventilation unnecessarily increases energy bills.

With the AM305L, the building no longer relies solely on fixed schedules to react. It can use concrete data to fine-tune its operation. This is the whole point of a LoRaWAN indoor air quality sensor designed for the field: to make data immediately useful.

A sensor designed for on-site operation

The value of the AM304L and AM305L lies not only in the richness of the measurements but also in their ease of use.

Thanks to their integrated traffic light-style visual indicator, the state of the indoor environment can be identified at a glance. This visual cue helps to quickly understand whether the situation is satisfactory or if action needs to be considered.

In practice, this helps to:

• reduce manual checks,
• speed up on-site diagnosis,
• improve the responsiveness of technical teams,
• make indoor air quality more legible daily.

It's simple, concrete, and allows for immediate data interpretation.

LoRaWAN and NFC: an approach adapted to Smart Building projects

For an IoT building project, a sensor's performance is not just about its technical specifications. Ease of deployment is just as important.

The AM304L and AM305L rely on LoRaWAN connectivity, which is particularly well-suited for Smart Building projects due to its low energy consumption and ability to effectively cover large areas.

NFC configuration simplifies commissioning, while multi-year battery life facilitates large-scale deployments, including in existing buildings.

For integrators and operators alike, this means fewer installation constraints, fewer on-site interventions, and smoother deployment.

What are the benefits for HVAC and energy efficiency?

By grouping the main indoor environment data into a single device, the AM304L and AM305L enable better connection of real building conditions to its automation systems. Temperature, humidity, presence, light, and CO₂ become directly actionable signals for more intelligent control of ventilation, heating, air conditioning, and lighting.

For operators, this can result in:

• less unnecessary HVAC operation,
• reduced risk of under- or over-ventilation,
• faster troubleshooting,
• better adaptation of the building to actual occupancy,
• a more solid basis for energy optimization.

In short, the building gains in consistency.

AM304L or AM305L: which model to choose?

The choice primarily depends on the specific business need.

AM304L
The AM304L is suitable for projects that want to monitor essential comfort and occupancy parameters:

• temperature,
• humidity,
• presence,
• light intensity.

It is very well suited for a global understanding of the indoor environment and for simple building optimization scenarios.

AM305L
The AM305L is designed for projects that want to go further in indoor air quality and ventilation control through CO₂ measurement. It is particularly relevant for:

• offices,
• meeting rooms,
• educational institutions,
• tertiary spaces,
• buildings open to the public.

A concrete response to the challenges of intelligent buildings

With the AM304L and AM305L, Milesight offers a pragmatic response to the current challenges of Smart Buildings.
Instead of multiplying equipment, these sensors centralize essential signals in a single device that is simple to deploy, easy to read, and genuinely useful for action.
For technical managers, operators, and integrators, the benefit is to:

• better monitor the indoor environment,
• improve comfort,
• optimize HVAC,
• reduce unnecessary consumption.

 

Do you have a Smart Building or IoT project?

Do you wish to integrate the AM304L or AM305L into a LoRaWAN architecture, an energy monitoring project, or an indoor air quality strategy?
Contact our team to identify the most suitable model for your needs and build a coherent solution aligned with your field objectives.