How to Choose the Right Aerosphere® CO2 Monitor for Your Facility
Whether you're managing a walk-in cooler or multiple commercial sites, choosing the right CO2 monitor can be the difference between safety and non-compliance. This guide breaks down the three Aerosphere® models—ONE, Primary, and MK2—to help you find your best fit.
Choosing the Right Aerosphere® CO2 Monitor for Your Facility
When it comes to CO2 safety monitoring, one size doesn’t fit all. Whether you're managing a single-zone restaurant or overseeing multiple commercial sites, you need a system that matches your needs, your scale, and your workflow.
At Aerosphere®, we’ve designed three monitoring solutions to fit different types of businesses—from basic, standalone setups to fully integrated, cloud-connected systems. Here’s a breakdown to help you decide which one’s right for you.
1. Aerosphere® ONE – Compliance Made Simple
Best for: Single-zone monitoring or facilities requiring a single-sensor monitoring unit
Price: Starts at $335
The Aerosphere® ONE is our most accessible model—designed for straightforward, single-zone CO2 detection. It’s a plug-and-play solution ideal for restaurants, drive-thrus, walk-in coolers, and convenience stores.
What you get:
- Full compliance with codes like IFC, NFPA 55, and NBIC
- Real-time CO2 readings via a backlit LCD display
- Adjustable alarm thresholds, preset alarm thresholds at 5,000 / 15,000 / 30,000 ppm straight out of the box
- One NO/NC relay for connecting to gas relay valves, fire panels, or HVAC systems
- Horn strobe compatibility for visual and audible alerts
If you need fast setup, solid performance, and code-ready features for your single-zone, Aerosphere® ONE is your go-to.
2. Aerosphere® Primary – The Foundational Monitor
Best for: Mid-to-large sized facilities needing multi-zone coverage
Price: Starts at $575
The Aerosphere® Primary takes things further with expandable capabilities. This model supports up to four monitoring zones through the addition of Aerosphere® Secondaries and Aerosphere® CO2 Sensor Probes. This model comes with two NO/NC relay integrations.
Why upgrade to the Primary?
- You can monitor up to four areas, including where the Primary is stationed, across a site with the addition of three Aerosphere® Secondaries.
- The two relays allow greater control over safety integrations and automations
- Built to grow with your space as your CO2 monitoring needs increase
- In addition to standalone use, the Primary unit can be configured as a central monitoring hub—making it easy to track CO2 levels across four zones using Aerosphere® Secondaries, all viewable on a single display. This setup allows real-time ppm reporting from all connected areas back to your office or viewpoint.
It’s ideal for teams that want the reliability of the ONE model, but need to monitor more zones or prepare for future expansion.
3. Aerosphere® MK2 – The Enterprise Standard
Best for: Enterprise management teams and multi-site owners who need remote access to CO2 safety data—including real-time indoor ppm levels and CO2 tank cylinder fill tracking.
Price: $795; Contact sales@aerospheremonitoring.com for this product.
If your operation spans multiple locations—or you simply want remote access to your locations' indoor ppm and CO2 tank cylinder fill levels—the Aerosphere® MK2 is the clear choice.
Building on the trusted features of the Aerosphere® Primary, the MK2 adds powerful connectivity and enterprise-ready functionality:
- WiFi-connectivity for continuous remote data upload and access via the Aerosphere® portal
- Monitor CO2 tank fill levels over time and identify potential leaks before they become critical, all from your office or while on the go
MK2 is ideal for facilities managers, compliance officers, or larger teams who want to view and manage CO2 safety across multiple sites — all from one dashboard.
Which One Is Right for You?
| Model | Best For | Zones Supported | Remote Access | Pricing starts at |
|---|---|---|---|---|
| ONE | Small, single-zone setups | 1 | No | $335 |
| Primary | Medium, multi-zone facilities | Up to 4 | No | $625 |
| MK2 | Multi-site or remote management | Up to 4 | Yes (WiFi) | $795 |
📄 Download Comparison Sheet (PDF)
No matter which model you choose, all Aerosphere® systems are:
- U.S. manufactured & assembled in an ISO 9001 certified facility
- Fully code-compliant with the IFC 2018, NFPA 55, NBIC
- Built with precision NDIR sensors for accuracy
- Backed by real support and service with our expert technicians
Need Help Getting Set Up?
We don’t just provide the hardware—we support you every step of the way. Whether you're installing a single unit or outfitting a new facility, our team is here to help.
We offer:
- Drafting services for permitting packages and building plans
- Permitting assistance to streamline your approval process
- Professional installation & maintenance by certified technicians
- Recertification services to keep you up to code
From site surveys and drawing the floorplan to post-install support and recertifications, we’re your partner in CO2 safety compliance. Learn more about our service and compliance here!
