Square Air CO2 for LoRaWAN

Square Air CO2 LoRaWAN

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Square Air CO₂ is a compact, intelligent room sensor designed for long-term indoor environmental monitoring, smart ventilation, and building optimization.

Combining continuous CO₂ monitoring with room occupancy detection and Indoor Air Quality (IAQ) sensing, it provides a comprehensive view of both the indoor environment and how the space is being used. In addition to CO₂, IAQ and presence, Square Air CO₂ measures temperature, humidity, barometric pressure, and ambient light.

Its intelligent sensing architecture continuously monitors CO₂ and presence, while IAQ sensing can be activated when needed based on occupancy, office hours, or changing environmental conditions. This enables detailed air-quality monitoring when it matters, while minimizing unnecessary energy consumption.

By combining occupancy information with CO₂ and IAQ data, Square Air CO₂ provides valuable insight into ventilation performance, room utilization, indoor comfort, and changing air-quality conditions. This makes it well suited for demand-controlled ventilation, HVAC optimization, workplace monitoring, schools, public buildings, and other smart-building applications.

With its discreet 58 × 58 × 15 mm design, LoRaWAN connectivity, and high-capacity battery, Square Air CO₂ is designed for 10+ years of operation, enabling scalable, low-maintenance deployments across buildings and facilities

Typical use cases

• Indoor air quality and CO₂ monitoring in offices, schools, public buildings, and commercial properties
• Demand-controlled ventilation and HVAC optimization using CO₂, IAQ, and occupancy data
• Room occupancy and utilization monitoring combined with indoor environmental data
• Building energy optimization by adapting ventilation and environmental control to actual room usage
• Indoor comfort monitoring based on temperature, humidity, CO₂, and air quality
• Detection of changing air quality conditions and abnormal indoor air events
• Long-term building performance monitoring and data-driven facility management

Key advantages

• Continuous CO₂ & Presence – 24/7
• CO₂ + IAQ + Presence – in one sensor
• Intelligent, presence-aware sensing
• 10+ years battery life
• Ultra-compact, wireless and easy to deploy

Installation

Square Air CO₂ is designed for fast and flexible installation. It can be mounted using the integrated adhesive for quick installation without tools, or with the optional Sensative Square Screw Mounting Kit for a secure and permanent installation.

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 D, 2026-08-26