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 5 minutes and informs if it is necessary to ventilate or close the window

  • Humidity

  • CO2

  • LoRaWAN

The connected CO2 sensor for professionals

The data collected by room sensors is essential to the smooth operation of many buildings.

Our products offer exceptional reliability, stable IoT connectivity, long battery life and consistently accurate measurements.

Easy to manage and configure, they can be deployed in large numbers to ensure efficient operations and satisfied customers.

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CO2 sensor / Lorawan sensor / sonde CO2 connectée

Monitor CO2 at a glance!

RISE analyzes CO2 levels every 5 minutes and visually alerts occupants when it’s time to ventilate to renew indoor air.

CO2 sensor / Lorawan sensor / sonde CO2 connectée

Measurement accuracy

Calibration certificate issued by a COFRAC-accredited metrology laboratory. The CO2 sensor analyzes the air every 5 minutes and automatically recalibrates every week (manual calibration possible).

Regulatory compliance

Take control of your environment by ensuring healthy indoor air. Direct-reading sensor compliant with French and international standards for measuring CO2 concentration

Indicator light visible from over 10 metres

The powerful Green / Orange / Red indicator changes with the CO2 level. ppm" trigger threshold can be reconfigured locally via wireless NFC or remotely via LoRaWAN

Control Indoor Air Quality

270° Air

Numerous side openings for better ambient air analysis

Signal tone

An audible signal notifies occupants if Indoor Air Quality deteriorates. Signal can be activated/deactivated locally or remotely

Saves measured data

Built-in micro SD card. Up to 10 years of sensor measurements stored in memory. Useful in the event of a power cut

Reliable, precise temperature and humidity measurements

To avoid any risk of erroneous measurements, particular attention has been paid to integrating the temperature and humidity sensors into the product.

Rigorous testing and strict validation protocols guarantee operation in extreme operating conditions ranging from -20°C to +50°C and from 0 to 99% ambient humidity.

Long-term measurement reliability

Guaranteed consistency and accuracy, with no measurement drift over time

Regulatory compliance

Sensor calibration certificate issued by a COFRAC-accredited independant metrology laboratory


Accuracy: +/- 2% RH


Accuracy: +/- 0.2°C

Fast and secure installation

3M adhesive fastener

Allows quick installation without screws or plugs. Avoids drilling into walls where asbestos, pipes or cables are present

Easy to install

Free-standing, wall-mounted or for single-user flush-mounting boxes

Anti-theft protection

Lockable mounting base reduces risk of sensor removal

Anti-tear detection

Triggers an alert message if the product is removed from its mounting base
CO2 sensor / Lorawan sensor / sonde CO2 connectée

Superior performance for optimal LoRaWAN® data transmission

CO2 sensor / Lorawan sensor / sonde CO2 connectée

Multi-band LoRaWAN transceiver

With the Nexelec TOUCH application and NFC technology, you can quickly and easily configure the product to transmit on the frequency of your choice: Europe (868MHz), USA (915MHz), Australia (923MHz), etc.

No more data loss!

Historical Data mode + Redundancy function: measurements can be grouped in a single LoRaWAN frame to limit the number of radio transmissions and are sent 3 times to maximize their reception by the network gateway.

Optimized PCB radio antenna

Designed to ensure reliable radio connectivity, even in harsh environments, while limiting power consumption to extend battery life

Enhanced cyber security

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

QR'LOOK simplifies the use of room sensors

Are you deploying thousands of sensors on your property, and want to make your residents aware of how to use room sensors?

Enhanced security

QR'LOOK is a QR Code label to be stuck near the sensors so that occupants can learn how to use them optimally thanks to our advice

Information always at hand

Occupants simply scan the QR Code to access an online web page containing all the information they need on their sensor: operation, use, maintenance, downloadable instructions, videos, etc.

NAVIXIS: the IoT platform that saves you time

Smoke detector. 10-year battery / Détecteur de fumée

Connect and control your LoRaWAN equipment

Dashboard and data visualization

Real-time alerts or alerts triggered by thresholds

Graphical analyses and PDF reports

User rights management


  • Carbon Dioxide

    Carbon Dioxide

    Res. 1 ppm
    Prec. ±(50 ppm + 3% of value)
    Measurement range: 0 to 5.000 ppm

  • Temperature


    Res. : 0.1°C
    Prec. : ±0.2°C
    Measurement range: -30°C to +70°C

  • Humidity


    Res. 0.5% R.H.
    Prec. : ±2% R.H.
    Measurement range: 0 – 100% R.H.


  • Connectivity

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

  • Set contents

    1 sensor
    2 batteries included
    1 micro SD memory card
    1 mounting base
    2 nylon screws and plugs
    1 3M® adhesive fastener

  • Power supply

    2 battery slots

  • Data transmission mode

    On change
    Grouped data (datalog) with transmission redundancy

  • Certification

  • Warranty

    2 years**


Reference Radio Frequency
X520LS LoRaWAN - Sigfox EU868 MHz

Easy installation

Thanks to the product video unboxing, installation and commissioning of RISE go off without a hitch.

Play video
CO2 sensor / Lorawan sensor / sonde CO2 connectée

Autonomy of more than 15 years

  • Very low power consumption for sensors and on-board electronics
  • Includes 2 SAFT 2600 mAh high-density replaceable batteries

Calculate your product’s projected autonomy with our online application VOLT

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.

There’s no need to unpack RISE, as settings can be made right out of the box, without the sensor being powered by its battery!

Over 25 configurable parameters :

  • Measurement and data transmission frequencies,
  • Light and sound indicators,
  • Choice of LoRaWAN radio frequency according to geographical area (EU868, US915, AS923, etc.)

And much more.

CO2 sensor / Lorawan sensor / sonde CO2 connectée

Sustainable and eco-responsible

Nexelec is committed to responsible electronics. Our approach integrates respect for the environment right from the design stage. We choose sustainable materials, reduce energy consumption and aim to increase the longevity of our devices.

Read our environmental policy

Download the RISE environmental datasheet

Measures room parameters with one click

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

CO2 sensor / Lorawan sensor / sonde CO2 connectée
CO2 sensor / Lorawan sensor / sonde CO2 connectée

Who says an IoT sensor can't be elegant?

RISE combines technology with a modern, minimalist design that blends harmoniously into any environment.

Discover now the future of IoT, where functionality and aesthetics come together perfectly.

Design & Performance

Frequently Asked Questions

Our experts answer your questions

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.

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%.

*Typical autonomy (not guaranteed) with 2 SAFT LS14500 batteries and 2 hours of LED per day: LoRaWAN SF10, Measurement 10 min, periodic sending 30 min

**Please refer to the information available on www.support.nexelec.fr