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Square Air CO2 LoRaWAN
Square Air CO2 is an advanced multi-sensor designed for comprehensive indoor air quality monitoring with real CO2 measurements. It measures air quality index (IAQ), CO2, bVOC, temperature, humidity, barometric pressure, and ambient light, providing a complete picture of indoor environments.
Powered by the Bosch BME690 AI-enabled gas sensor, Square Air CO2 acts as a digital nose, capable of detecting a wide range of airborne substances and enabling smarter, data-driven ventilation and energy optimization.
In addition, Square Air CO2 integrates the Sensirion STCC4 sensor for direct CO2 measurement, ensuring accurate CO2 readings.
With a compact design (58 × 58 × 15 mm) and a high-capacity battery, it delivers 10+ years of operation making it ideal for long-term, maintenance-free deployments.
Typical use cases
- Indoor air quality monitoring in offices, schools, and buildings
- Smart ventilation and HVAC optimization
- Compliance-driven environments
- Workplace health and productivity monitoring
- Detection of air quality deviations and pollutants
Key advantages
- CO2 measurements
- Advanced air quality sensing – IAQ, bVOC and multiple environmental parameters
- AI-powered gas detection – Bosch BME690 enables detection of complex air compositions
- +10 years battery life – designed for long-term, maintenance-free operation
- Multi-function sensor – combines air quality, climate, and ambient light sensing
- Easy configuration – via NFC using an Android smartphone
- Discreet and compact design – suitable for professional environments
Advanced capabilities
Square Air CO2 can be trained to detect specific gases or substances using AI-based configuration of the BME690 sensor, enabling tailored applications for specialized environments.
This functionality requires training. Please contact Sensative for more information.
Installation
Square Air CO2 can be mounted using the integrated adhesive for quick installation, or with the Sensative Square Screw Mounting Kit (optional) for secure and permanent mounting.
Smart geolocation (without GPS)
Square Air CO2 supports cloud-based Wi-Fi geolocation, enabling positioning in indoor or GPS-denied environments by scanning nearby Wi-Fi networks.
This functionality requires a compatible cloud service such as Sensative Yggio.
Rev C, 2026-04-08
| Application | |
|---|---|
| Application | Room sensor, Fire alarm, Occupancy, Air Quality, Security, Asset management, Room comfort, HVAC Control, Temperature/Humidity |
| Benefits | |
| Benefits | Blend-in design, Long-range (2 km), Simple installation & mounting, All-in-one air quality sensor, Accurate CO2 sensing, Detects a wide spectrum of air pollutants |
| In/Outdoor usage | Indoor |
| Features | |
| Sensor | Geolocation, Humidity, Light (LUX), Temperature, Air pressure, CO2, bVOC, Air Quality Index (IAQ), Indoor positioning |
| Accessories | Cloud Positioning Service |
| Configuration | LoRaWAN OTAA, NFC |
| Geopositioning | WIFI 2.4 GHz |
| Connectivity data | |
| Frequency | EU (868 MHz) or India (868 MHz) or US (915 MHz) or AU915 - Australia 915 - 928 MHz or AS923-1 - Asia 902 - 928 MHz or KR920 - South Korea 902 - 928 MHz or AS923-2 - Asia 923-925 MHz |
| Protocols / Connectivity | LoRaWAN, NFC |
| LoRaWAN version | V 1.0.4 |
| LoRaWAN class | Class A |
| Sensor data | |
| Ambient light range | 1 - 65 000 LUX |
| Temperature accuracy | +/- 0.2 °C |
| Humidity accuracy | 1.8% RH |
| Sensor circuit | Bosch BME690, Avago APDS-9306, Sensirion SHT40, Sensirion STCC4, Bosch BME690, Sensirion STCC4 |
| Sensor type | GPS/Beidou and WiFi location |
| Power supply | |
| Powered by | Non-replaceable battery, LiMnO2, 6 Ah |
| Mechanical data | |
| Weight (g) | 65 |
| Width (mm) | 58 |
| Depth (mm) | 15 |
| Height (mm) | 58 |
| Internal | |
| Yggio decoder | Unknown |
| Manufacturer | Sensative |
| Country of origin | Poland |
| Uncategorized | |
| CO2 Accuracy | ±(100 ppm + 10%) from 400 – 5’000 ppm |