CO2Mini Indoor Air Quality Monitor |
**IMPORTANT: With an abundance of caution for our employees health and safety the CO2Meter offices will be closed Thursday, September 29 and Friday, September 30 because of the pending impact of Hurricane Ian. Orders placed online will be fulfilled once our offices reopen.**

CO2Mini Indoor Air Quality Monitor

CO2Mini Indoor Air Quality Monitor
Regular price $69.00 Sale price

Compare at $109.00

POs or wholesale quantity discounts click here

**NOW ON SALE AT $69 (Original Price: $109) LIMITED TIME ONLY**

The CO2Mini monitor is a low cost, easy to use desktop indoor air quality monitor. It displays carbon dioxide and temperature. The CO2Mini can be used in offices, schools, meeting rooms, homes and other places where personal comfort and health is important.

The CO2Mini is easy to use: just plug it into a USB port, and it will begin to measure air quality instantly. It has no moving parts, is self-calibrating, and is designed to last for years. Three LEDs - green, yellow and red - show overall air quality, or you can read the CO2 and temperature levels on the large display.

Free Data Logger Software

The free PC software lets you graph CO2 levels over time. This makes the CO2Mini perfect for science experiments or learning about CO2 levels in the classroom.


  • Three different indicator lights (Red, Yellow & Green) show the current Indoor Air Quality
  • Audible Alarm on Yellow and Red LEDs
  • Easy to Use - Just Plug It Into a USB port
  • Self-Calibrating - Saves Money
  • Free Software to Record CO2 Levels - download here


This device will NOT meet requirements for CO2 safety monitoring which requires a Fixed/Wall mounted, hard-wired alarm per the NBIC, NFPA, or IFC regulations. Refer to our CO2 Safety Products page for devices that meet your needs.

Call us at (877) 678-4259 toll-free or email us to speak with our technical sales team about purchasing the correct device.


  • CO2 Measurement Range: 0-3,000ppm
  • Response Time: < 2 Minutes
  • Accuracy: 0-2,000ppm ± 100ppm or ± 7% of reading
  • Temperature Range: 0°C to 50°C (32°F to 122°F)
  • Temperature Display: °C or °F Switchable
  • Sensor Life Expectancy: 15 years
  • Data logging capabilities while tethered to a PC


  • Power Supply: USB Cable (included)
  • 110-220VAC to USB Adapter (optional)


  • 1 year - See CO2Meter Terms and Conditions.
  • Data Sheets

  • Manuals

  • Technical Documents

  • Videos

  • Additional Resources

  • Case Studies

Customer Reviews

Based on 8 reviews
Helps get better sleep

It has helped me keep overnight air fresher in bedroom. Early on I disabled the piezo speaker but had to do it with a screw forced into the speaker. I recommend mfr make silencing more convenient. Silence helps sleep.

Kip B
Simple, small, and useful

I've carried this to all sorts of places where you can unobtrusively measure the CO2. I love it and use it all the time. The only drawbacks: beeps on power-up (everybody knows); insists on beeping at high CO2, though you can set it for 2900 ppm, my gym is often over that; wish I could disable temp or have smaller temp simultaneous with bigger CO2, as I often want CO2 but get confused by temp or have to wait 10 seconds for CO2 to appear. I've used external battery USB power to avoid need to plug in - rechargeable would be nice addition. Going to 5Kppm would be nice too.


good service .OVERALL HAPPY

A cheap way to increase brain power!

I bought this product for personal use to track the CO2 levels in my bedroom/home office. It has worked wonderfully and the provided software has meant that I can keep track of things like average CO2 levels over a given period without having to keep checking the device.

If you are thinking about buying this, I would strongly suggest that you do! It's a few quid (or dollars) for basically free brain power. When I first got it I realised ambient CO2 levels in the room were consistently over 1000ppm. Now that I have it I have been able to keep the CO2 levels below 800ppm pretty much all the time and I feel much better for it!

Francisco Santana

Recibed in good conditions, described.

"Easy to install, easy to set up, and easy calibration - just what I was looking for."

- Phillip Farrar
Water Plant Superintendent

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