Square Air CO2 for LoRaWAN

CO₂, VOC, Air QUALITY, TEMPERATURE, HUMIDITY, AMBIENT LIGHT, AIR PRESSURE

Coming soon - pre-order now!

Meet the Square Air CO2 combining real-world VOC sensing with real CO2 measurements

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

Indoor

Square Air CO2 is designed to give you both perspectives of indoor air quality. It captures how air actually behaves—detecting a broad mix of VOCs from materials, activities, and human presence—while also providing precise, reliable CO2 measurements.

Unlike simplified air quality solutions, it uses dedicated CO2 sensing technology to deliver accurate values required for standards, certifications, and ventilation control. High-quality CO2 sensors are calibrated and engineered to ensure stable, reliable readings over time—critical for building compliance and performance monitoring.

This means you don’t have to choose between “perceived air quality” and “regulatory accuracy.” You get both—enabling smarter ventilation, healthier environments, and full confidence in your data.

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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
Operating Conditions
Operating range	-20 - +60 °C
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