BREEZE – Indoor Air Quality & CO2 Sensor

LoRaWAN® connected Indoor Ambient Environment Monitoring



Ingress Protection




Tx Power

15 dBm


91 g

The TEKTELIC BREEZE is a member of our Smart Room Sensor family and integrates practical functionality into a very small form factor. With two variants options, it is an ideal solution for holistically monitoring ambient indoor environments. IAQ sensor measures and reports real-time CO2 levels, temperature, humidity and light in its surrounding environment, while the BREEZE-V also has additional PIR for motion detection. IAQ sensor is optimized for long battery life and excellent wireless performance with deep indoor coverage capabilities in any home, school, office, enterprise or commercial environment. The device is fully configurable over-the-air by the user for custom applications, thresholds, trigger events and reports. TEKTELIC BREEZE supports autocalibration with settable intervals. Furthermore, the CO2 can be calibrated through the application or manually.


  • CO2 Concentration
  • Light Detection (On / Off)
  • Temperature Measurement
  • Humidity Measurement
  • Barometric Air Pressure
  • User Configurable Parameters and Thresholds
  • Designed for Optimal Battery Life
  • Pairable with E-Ink Display
  • Wall, Ceiling or Table Mount Configurations
  • Simple Deployment
  • Sleek and Unobstructed Design
  • Ambient Indoor Environment Monitoring
Operational Temperature 0°C to 60°C
Storage Temperature -40°C to 60°C
LoRa Device Class A
Antenna Internal
RF Sensitivity up to -137dBm
RF Power
15 dBm
successful projects

cirkuit’s Comprehensive Solution for Property Management

Implementing LoRaWAN® Sensor Solution to Protect Buildings from Water Damage

Providing the Agricultural Sector with Smart and Cost-Efficient Connectivity Options

DMI and TEKTELIC Collaboration for Commercial Buildings

Aware Buildings and TEKTELIC Partnerships

TEKTELIC and DS Energy Collaboration for Energy Management



Can I calibrate the CO2 sensor?

Yes, there are several ways to calibrate the CO2 sensor.
• The sensor uses an automatic calibration method by default, which will calibrate the sensor every 7.5 days. The frequency and target value of the calibrations can be configured using a downlink message to the sensor.
• There are three manual calibration methods to chose from, each suited to a different environment. Manual calibrations can be performed by sending the appropriate downlink message to the sensor,
• The sensor can be manually calibrated when it is exposed to fresh-air using one of the onboard push-buttons.
Please refer to the sensor TRM for more details.

How often should I calibrate the CO2 sensor?

This depends on the desired calibration method:
• Automatic calibration: The automatic calibration period should be configured to capture periods where CO2 levels can drop to around that of fresh air (~400 ppm). This most often occurs overnight and on weekends when rooms are vacant for at least a few hours (depending on the ventilation quality).
• Manual calibration: Every two to three years.

How should I mount a sensor for CO2 sensing?

For best results, try to place the sensor away from any doors, windows, fans, fresh air inlets, and places where people may breathe directly on them. Ensure that the openings on the top and sides of the enclosure are unobstructed for optimal air flow. It is recommended to place the sensor in areas that will best reflect the CO2 concentration experienced by room occupants.

How does pressure compensation affect the CO2 measurements?

Pressure compensation is essential for obtaining accurate CO2 measurements at altitudes above or below sea level. For example, the difference in CO2 measurements with and without pressure compensation can be over 100 ppm in the city of Calgary, which is over 1000 meters above sea level.

How do I pair a sensor to a display?

Each sensor is programmed to communicate with a display, so no manual Bluetooth pairing is required. The sensor will always attempt to establish a connection with the display when it reports the most recent transducer measurements.

How often is the Display updated?

The display is updated shortly after the sensor sends a LoRaWAN® uplink message containing measurement data to the LoRaWAN® network server. The sensor’s reporting frequency can be configured via downlink messages.

Will the sensor still take measurements and update the display if it hasn’t joined the LoRaWAN network?

No, the sensor must first join a LoRaWAN network before it will begin taking measurements and communicating with the display.

Why are there two battery indicators on the display?

The indicator on the left is for the remaining battery capacity of the sensor, and the indicator on the right is for the remaining battery capacity of the display.