The New Air Quality Monitor (AQM)

By Air Systems International 

Spec Sheet

View/download AQM User Manual

 

Key Features of the New Air Quality Monitor (AQM)

• Large, easy-to-read 3-inch color digital resistive touchscreen
• Real-time display of CO, O₂, and dew point
• 120 dBA audible & visual alarm
• Automatic calibration with guided step-by-step instructions on board
• Service icons for calibration reminders, sensor replacement, and battery life
• Adjustable backlight brightness to extend battery life
• Built-in instruction manual accessible through the display
• Multi-language support: English, Spanish, and French
• Universal power supply 110 – 230 VAC / 12-20 VDC
• Password protection to prevent unauthorized changes
• Optional disabling of O₂ and dew point monitoring sensors and alarms
• Continuous battery and power status display on all screens
• Water content displayed in ADP or PPM; Temperature in °F or °C
• Calibration service reminders and integrated sensor life calculator

 

Currently, only a standard version is available. We have submitted the intrinsically safe version for review and certification.

BB60-CO with the new AQM

BB60-CO with the new AQM

 

 

 Air Quality Monitor (AQM) FAQ

 

What is the last date to order the legacy monitors?

Unfortunately, we currently have a back-order of products that will consume all existing legacy monitors. From January 1, 2026, all new orders (and a few back orders) will feature the new AQM Monitor.

 

What is considered a legacy monitor?

Any monitor in the black metal case is considered a legacy monitor. Item model examples include CO-91, CO2-91, CO91-14LAC, CO-91 PM and CO-91IS series products.

 

Is my legacy monitor still good without the O2 sensor or dew point measured?

Yes, per OSHA: 29CFR Section 1910.134(I0(7) REQUIRES THE USE OF A CARBON MONOXIDE (CO) MONITOR FOR COMPRESSED BREATHING AIR SUPPLIED FROM OIL LUBRICATED COMPRESSORS. Users should still be aware of the O2 levels and dew point, but are not required to alarm if either is not within specified ranges.

 

Can we retroactively fit Breather Boxes with new the new monitor?

We are still working out the logistics on how to retrofit the new AQM Monitor into existing products in the field. We’re also sorting out the process for sending in products to be retrofitted at the factory in Chesapeake, VA. Details will follow in the next few weeks.

 

Will you still have parts for the Legacy Monitors (CO-91 and CO2-91 Series models)?

We will have a limited number of parts and will do the best we can to supply legacy monitors in the near future. We’ve already exhausted the O2 sensor supply and are now using an adaptor (O2-NS-ADPT) to use a new sensor (O2-NS) in legacy models.

 

Where is the manual online?

The manual can be found at www.AirSystems.com/AQM or www.AirSystems.com/manuals/aqm.pdf

 

How long do the batteries last? What kind of batteries are used?

Six AA batteries will last approximately 40 hours in use. Options include 12-12 VDC input from vehicles or many popular cordless tool batteries. Contact Customer Service for custom options.

 

Can I disable the CO Sensor and/or Alarm?

No, the CO sensor and alarm cannot be disabled.

 

Can I disable the O2 Sensor and/or Alarm?

Yes, the O2 alarm can be enabled or disabled. If a sensor is installed, the O2 level will still be displayed with no audio or visual alarm.

 

Can I disable the Humidity Sensor (Dew Point) Sensor and/or Alarm?

Yes, the Humidity sensor can be enabled or disabled

 

HELP! I changed the language! How do I get it back to another language?

Turn the AQM off by pressing and holding the power button and selecting the bottom right button (YES / SI / OUI).

Turn the power button on and let the AQM cycle through the initial 3 screens. A language preference screen will appear (if set up this way). Select the button next to the preferred language and hit SET (or AJUSTAR / REGLER)) depending on the language.

If the language option does not come on allowing language selection, press bottom right button (NO / NO / NON) and then bottom right button 3 times to get Language/Idioma/lLangue Menu in center of screen. Click and select preferred language and the SET button.

Then determine if you want to ask language at startup and hit SET / AJUSTAR / REGLER. Hit bottom left button 2 times and the monitor is ready for use. Hit bottom Left button 2 more times to reach SETUP Menu to make additional changes prior to use.

 

Factory Reset

The factory reset option restores the monitor to the condition and options that were originally shipped to the user. Any changes such as language, calibration reminders, and screen brightness will have to be reset to user’s preference.

 

Forgot Pass Code?

If you forget the pass code, the master pass code is ASI.

 

Replacement Sensors

Replacement sensors and parts are listed in the AQM Manual. The most common replacement parts are the CO sensor (CO-91NS) and the O2 Sensor (O2-NS). The Allen Tool (battery cover tool - AQM-TOOL) can be ordered or a 1/16" Allen wrench can be used to open the battery compartment. A 7/16" Allen wrench can be used to open the sensor compartment. 

 

What regulations do the sensors meet?

OSHA: 29CFR Section 1910.134(I0(7) REQUIRES THE USE OF A CARBON MONOXIDE (CO) MONITOR FOR COMPRESSED BREATHING AIR SUPPLIED FROM OIL LUBRICATED COMPRESSORS

 

U.S. regulatory information regarding carbon monoxide and moisture levels for breathing air: USE OF THIS MONITOR WILL INFORM THE USER IF THE AIR SUPPLY COMPLIES WITH OSHA: 29CFR SECTIONS; 1910.134(I)(1)(ii)C CARBON MONOXIDE CONTENT 1910.134(I)(5)(ii) MOISTURE CONTENT

 

U.S. regulatory information regarding oxygen levels for breathing air: USE OF THIS MONITOR WITH AN O2 SENSOR ACTIVE WILL INFORM THE USER IF THE AIR SUPPLY COMPLIES WITH OSHA: 29CFR, SECTIONS; 1910.134(I)(1)(ii)A OXYGEN CONTENT

 

Additional U.S. And Canadian Regulatory Information For Breathing Air: USE OF THIS MONITOR WILL ALSO ASSIST IN MAINTAINING COMPLIANCE WITH; CGA-7.1 (2004); NFPA 1989 (2013) SECTIONS; 5.6.1, 5.6.2, 5.6.5; CAN3-2180.1-M85 SECTIONS; 5.5.2, 5.5.3, 5.5.10

 

Further questions?

Email This email address is being protected from spambots. You need JavaScript enabled to view it. or call us at 1 (800) 866-8100