3-in-1 room sensor

  • Connected


    Remote reading of measurements. All information is available in a secure cloud space

  • Monitors indoor air quality

    Monitors indoor air quality

    The CO2 sensor analyzes the atmosphere every 10 minutes and informs if it is necessary to ventilate or close the window

  • CO2

  • Humidity

  • LoRaWAN

Give yourself the opportunity to control and improve Indoor Air Quality

Accurate measurement of CO2 levels is essential to ensure healthy air. The AERO CO2 detector features a three-color LED indicator system that gives an immediate understanding of the CO2 level, enabling preventive or corrective action to be taken.

The “ppm” trigger threshold can be reconfigured locally using the Nexelec TOUCH application and wireless NFC technology.

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The product features Air 360° technology for ambient air analysis. Featuring large openings at the rear, this exclusive design allows gases to flow into the heart of the product for fast, reliable analysis.

See CO2 levels at a glance!

Every 10 minutes, AERO CO2 analyzes the CO2 level and visually alerts occupants when it’s time to renew the indoor air.

Carbon Dioxide Sensor / Capteur CO2

Instantaneous measurement

Easy to operate thanks to the button on the front of the sensor. Useful for occupants or technicians (function can be disabled)

Regulatory compliance

Direct-reading sensor compliant with French standards for measuring CO2 concentration in indoor air

Indicator light

The Green / Orange / Red indicator changes with the CO2 level and alerts you when it's time to ventilate to renew the indoor air.

Reliable, precise temperature and humidity analysis

To limit the risk of erroneous measurements, particular attention has been paid to integrating temperature and humidity sensors.

To ensure that it operates smoothly in all conditions, AERO CO2 has been subjected to rigorous testing and strict validation protocols. It has been tested under extreme operating conditions, from -20°C to +50°C and from 0 to 99% humidity. So you can rely on its reliability even in tough environments.

Calibration certificate

Accuracy of CO2, temperature and humidity measurements validated by a COFRAC-accredited metrology laboratory


Accuracy: +/- 2% RH


Accuracy: +/- 0.3°C
Sound and light feature / sécurité incendie

Fast and secure installation

Carbon Dioxide Sensor / Capteur CO2

Easy to install

Free-standing on a desk or wall-mounted. Adhesive mount included

Anti-theft protection

Lockable mounting base reduces risk of sensor removal

Compact mounting base

Only 3 cm in diameter to avoid damaging the installation surface

Superior performance for optimal LoRaWAN® data transmission

Optimized PCB radio antenna

Designed to ensure reliable radio connectivity, even in harsh environments, while limiting product power consumption

No more data loss!

Historical Data mode or Periodic Send mode, the various transmission modes available ensure maximum reception by the LoRaWAN network gateway.

Enhanced cyber security

Data transmitted by the product is secured from end to end using double AES128 encryption.

Navixis, the IoT platform that saves you time

Smoke detector. 10-year battery / Détecteur de fumée

User rights management

Graphical analyses and PDF reports

Real-time alerts or alerts triggered by thresholds

Dashboard and data visualization

Connect and control your LoRaWAN equipment


  • Carbon Dioxide

    Carbon Dioxide

    Technology: Dual-channel Non-Dispersive Infrared (NDIR)
    Resolution: 1 ppm
    Accuracy: ±(30 ppm + 3% of measured value)
    Measurement range: 0 to 10.000 ppm

  • Temperature


    Resolution: 0.1°C
    Accuracy: ±0.3°C
    Measurement range: -30°C / +70°C

  • Humidity


    Resolution: 0.5% R.H.
    Accuracy: ±2% R.H.
    Measurement range: 0 to 100% R.H.


  • Connectivity

    • Smoke alarm. 10-year battery / Détecteur de fumée
  • Dimensions

    105 x 105 x 30 mm

  • Power supply

    1 USB-C socket

  • Conditions of use

    Indoor environment
    Temperature: -20°C to +50°C
    Humidity: 0% RH to 99% RH (non-condensing)

  • Mounting type

    Wall-mounted or free-standing

  • Warranty

    2 years*

  • Certification

  • Set contents

    1 sensor
    1 mounting base
    1 removable stand
    1 AC adapter
    1 x 1.8m USB-C cable
    2 nylon screws and plugs
    1 3M® adhesive fastener


Reference Radio Frequency

Optimum performance

  • AERO CO2’s low-energy sensors and on-board electronics guarantee optimized energy consumption.
  • AERO CO2 is equipped with a USB-C plug for quick and easy deployment
room sensor building / capteur d'ambiance
room sensor building / capteur d'ambiance

NFC configuration: simple, fast and secure!

The Nexelec TOUCH app, combined with NFC technology, enables wireless adjustment by simply bringing a smartphone close to your sensor, making the process much simpler for users.

This allows you to configure the CO2 thresholds to suit your needs. These products comply with the new 2022 regulations.

There’s no need to unpack AERO CO2, as settings can be made through the packaging, without the sensor being plugged in!

Measures ambient parameters with a single click

Need to take an immediate measurement and share the data? This is now possible and easy to do, thanks to the button on the front of the sensor.

Carbon Dioxide Sensor / Capteur CO2

Who says an IoT sensor can't be elegant?

AERO CO2 is the perfect fusion of innovation and modern design. It blends perfectly into any environment

Frequently Asked Questions

Our experts answer your questions

Moisture comes from a variety of sources, including human activity, breathing and architectural design problems. Air that’s too dry dries out the respiratory tract, and humidity that’s too high promotes allergies. Ideally, the humidity level in an enclosed space should be between 40% and 60%.

In an enclosed space, heat rises and stagnates at the ceiling, where the temperature is de facto a little higher than in the rest of the room. To ensure correct measurement of ambient temperature, we recommend mounting the detector on a wall 50 cm below the ceiling.

NFC (Near Field Communication) is a magnetic field technology used to exchange data between a product and a smartphone.

To configure the product, simply :

  • Download the free Nexelec TOUCH application from Google Play Store or Apple App Store
  • Select product and follow application instructions


The calibration process is performed automatically by the device every 8 days. No maintenance required. The reliability of CO2 measurements is guaranteed throughout the product’s lifetime.

You can also calibrate the CO2 sensor manually:

1. Place your product near an open window for at least 2 minutes.
2. Quickly press the product’s central button 6 times
The green LED lights up throughout the calibration process (for approx. 10 seconds).
Once the LED has gone out, manual calibration is complete.

Correct ventilation of communal areas helps reduce the risk of viruses spreading through the air.
Measuring CO2 levels enables you to quickly check the quality of air renewal, and encourages occupants to air the room if necessary.

CO2 can cause headaches, drowsiness, difficulty concentrating, mild nausea and rapid heart rate.
NEXELEC’s CO2 sensors provide reliable and accurate measurement of CO2 concentration.

NDIR (Non-Dispersive Infrared) sensors offer highly accurate measurement of CO2 levels. They use infrared spectroscopy to specifically detect CO2 molecules, enabling reliable and consistent measurements.

NDIR sensors are designed to maintain their calibration and accuracy over long periods, making them a durable choice for continuous monitoring of CO2 levels.

NDIR sensors are effective and reliable in an environment where CO2 levels reach at least a minimum of 400 ppm for several consecutive hours: at night and at weekends in communal areas, during the day in a bedroom.

*Please refer to the information available on the website.