CO2 Monitor for Air Quality, Bluetooth Data Logger

CO2 Monitoring for Indoor Air Quality

Get your Bluetooth-enabled HOBO MX1102 CO2/temp/RH logger now.
$595 USD Order Now

Onset’s award-winning HOBO MX1102 CO2 logger makes it more convenient than ever to measure and record CO2 in buildings and other non-condensing environments.

The MX1102 measures CO2 from 0-5,000 parts per million (ppm), and our free HOBOconnect app lets you access data right from your mobile phone, tablet, or Windows computer within a 100-foot range. The MX1102 also features a USB port so it can be used with a computer running HOBOware Pro graphing & analysis software.

  • Runs for six months on four AA batteries
  • LCD displays current readings and logger status
  • Works with Onset’s free HOBOconnect app
  • Meets ASHRAE guidelines for reopening schools
  • Remote access to your data in Onset’s cloud-based HOBOlink software with the new MX Gateway
  • Audible alarms notify you of problems
  • Self-calibrating CO2 sensor ensures optimal accuracy and lower maintenance costs
  • Patented connectivity technology

CO2 monitoring where it counts


Tracking CO2 is a critical aspect of measuring indoor air quality and ensuring a healthy environment. Whether you need to monitor an office space, school, or hospital, the HOBO MX1102 makes the process fast, easy, and cost-effective.

Self-Contained, Fully-Featured