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Space Plus Indoor Air Quality Monitor for Radon and CO2 Detection

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Description

The Space Plus: Radon and CO2 Indoor Air Quality Monitor is designed to provide real-time air quality insights across 7 key sensors – including radon, carbon dioxide, VOCs, temperature, humidity, pressure, noise, and light.

Designed for HVAC professionals, ESG managers, and compliance officers, this desktop or wall-mount solution features visual air quality indication, presence detection, and seamless integration via the smart link to ensure IAQ compliance and support WELL and ESG goals.

👉 Not sure which IAQ monitor you need? Take our 2-minute quiz to find your perfect product match and recommendation.

Note: CO2Meter ‘SPACE’ Indoor Air Quality solutions are available and supported only within the U.S. For international orders, please contact us.

Note: A CM-305 Space Hub and Annual Subscription are required with this IAQ Monitor for Data Access & Dashboard Integration. Contact us for more information.

Features

  • Multi-sensor gas monitoring: Tracks radon, carbon dioxide, VOCs, temperature, humidity, light pressure, and noise
  • Wireless and scalable – Easy installation without the need for complex wiring
  • Visual Indicator Ring – Red, yellow, and green glow ring dependent upon quality
  • Supports ESG and WELL compliance – Monitors key metrics aligned with healthy building standards 
  • Connectivity: Integrates with the Smart Link/Space Hub
  • Long battery life – Up to 10 years of power for low-maintenance operation
  • Smart alerts and insights – Improve ventilation and reduce energy waste with actionable data

Need help choosing the right plan or have questions? Contact us to learn more.

Specifications

Radon:

  • Radon sampling: Passive diffusion chamber
  • Detection method: Alpha spectrometry
  • Measurement range: 0 – 20,000 Bq/m3
  • Accuracy/precision: at 200 Bq/m3: After 7 days ~ 10 % After 2 months ~ 5 %

IAQ Sensor Specifications:

  • Sensor sampling interval: 5 minutes
  • Sensor to cloud latency: 5 – 10 minutes

Sensor Resolution:

  • Temperature ∓ 0.1°C
  • Humidity ∓ 1%
  • Pressure ∓ 0.15hPa

Settling time:

  • TVOC ~ 7 days
  • CO₂ ~ 7 days

CO2 details:

  • Sensing Technology: NDIR Sensor (Non-Dispersive Infra-Red): 
  • Measurement Range: 400–5000 ppm
  • Non condensing: 0 – 85%RH 
  • Optimum Accuracy: ±30ppm ±3% within 15 – 35°C and 0 – 80% RH   
  • Multiple settling cycles: locations with natural indoor CO2 fluctuations
  • Relative light intensity: (0 – 100%)

General Specifications:

  • Operational Environment: 4°C to 40°C
  • Weight: 219g (with batteries)
  • Dimensions: 12 cm (diameter) x 3.6 cm (height)
  • Power: 2 AA ultra long lifetime batteries
  • Connectivity: SmartLink
    • Long range (>1km line of sight) and low power
    • Supports 865-870MHz and 902-928MHz
    • Based on IEEE 802.15.4g with FHSS, 50kbps

Warranty

  • 1 year – See CO2Meter Terms and Conditions

Documents

Smart CO2 and Indoor Air Quality Monitor for Commercial Buildings Data Sheet (pdf)

Manual (pdf)

CO2Meter IAQ Comparison Chart (pdf)

Accessories

  • CM-305: Space Hub for Data Access and Dashboard
  • AS-SPACE PLUS: Annual Subscription
  • Space Plus Wall Bracket: please contact us directly for this accessory.

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Additional information

Title

CM-931 Space Plus: Radon and CO2 Indoor Air Quality Monitor, AS-SPACE PLUS: Annual Subscription

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