Sensative Square Air CO2 for LoRaWAN

Square Air CO2 LoRaWAN

Square Air CO₂ is an advanced multi-sensor designed for comprehensive indoor air quality monitoring with true CO₂ measurement. It measures air quality index (IAQ), CO₂, CO₂ equivalent (CO2e), 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 for environments where verified CO₂ data is required.

With a compact design (58 × 58 × 15 mm) and a high-capacity battery, it delivers 10+ years of operation – and up to ~20 years depending on usage profile, 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 (e.g. WELL, RESET Air)
• ·Workplace health and productivity monitoring
• ·Detection of air quality deviations and pollutants

Key advantages

True CO₂ measurement 

• 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 B, 2026-03-18