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Air Quality Monitoring

The air we breathe daily matters.

People spend the majority of their time indoors and expect buildings to keep them comfortable at all times. However, it's difficult to define what is "good" air quality although you would recognise it when you experience it. It varies from person to person but generally speaking, acceptable air quality lacks odours, contaminants and “stuffiness.” The fact that we need to assess things that don't belong, rather than things that do, complicates determining whether air quality is "good" or "needs improvement."

The Environmental Protection Agency has classified indoor air quality (IAQ) as one of the top five most important environmental threats to human health. With the increase of time spent indoors, the effects of indoor air pollution on people can be more severe than those of outdoor air pollution. Common indoor air contaminants and sources include;

  • carbon monoxide,
  • carbon dioxide,
  • moulds and bacteria,
  • outdoor air pollutants such as pollen and dust

These toxins are emitted from a wide range of products such as paints, cleaning supplies, pesticides, building materials and furnishings, and office equipment.

While additional outside air improves indoor air quality, it also increases heating and cooling loads. Maintaining acceptable indoor air quality becomes a balancing act between air quality and energy consumption. With this being said, building managers now have the demanding task of balancing temperature, humidity and other environmental conditions to deliver fresh air and ensure the health and comfort of its’ occupants. Maintaining this level of comfort at a reasonable cost however, may be difficult or impossible if the mechanical equipment is outdated or has insufficient controls.

To ensure the air circulating through your vents and in your buildings is clean and free of pollutants, install an indoor air quality wireless sensor system. They can provide unbiased information on system operations as well as, help to identify the course of comfort complaints, diagnose HVAC equipment operation and discover potential energy efficiency upgrades. The data loggers and sensors can monitor a variety of measurements including; CO2 levels, humidity levels, temperature, particulate matter counts (PM), volatile organic compounds (VOCs) as well as other important factors that may be affecting the wellbeing of those inside.


Like to learn more?

Read through this recent use case from a school in the US where they installed multiple HOBO MX1101A data loggers and gateways to improve the air quality in classrooms for their students and faculty.

Download: Use Case – Air Quality in Schools


Explore our range below or contact one of our Monitoring Systems Specialists on 1300 186 107 to discuss a system that will benefit your indoor environment.

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HOBO MX1102 - Carbon Dioxide (CO2) Data Logger

Onset’s HOBO MX1102 CO2 logger makes it more convenient than ever to measure and record CO2 in buildings and other non-condensing environments. Download to your phone or PC.
$1,125.00 (ex gst)

HOBO MX1101 - Temp/RH Bluetooth Data Logger

Onset’s HOBO MX1101 data logger measures and transmits temperature and relative humidity data wirelessly to mobile devices via Bluetooth Smart technology.
$275.00 (ex gst)

Monnit Wireless AA Carbon Dioxide (CO2) Sensor

CO2 concentration provides insight into facility ventilation quality and HVAC calibration. Greenhouses and modern grow spaces also rely on CO2 sensor data to optimize crop growth. Maintain wellness and productivity with the Monnit Wireless CO2 Sensor below.
$842.00 (ex gst)

Monnit ALTA Wireless AA Carbon Monoxide (CO) Sensor

The mems based wireless carbon monoxide sensor allows you to monitor the level of carbon monoxide (CO) gas in the surrounding air.
$626.00 (ex gst)

Monnit AA Wireless Air Particulate Meter

The ALTA AA wireless PM2.5 sensor measures PM1, PM2.5 and PM10 concentrations in the air and transmits the measurement to iMonnit portal.
$831.00 (ex gst)

VCP CO2, Temp & RH Transmitter w/- Display

RCD 010 THD is a wall mounted transmitter which combines Carbon Dioxide (CO2) + Humidity (rH) + Temperature (T) with a display
$414.00 (ex gst)

VCP Duct CO2 sensor CDK

The duct CO2 sensor CDK is a maintenance-free, micro- processor-controlled unit designed for duct installation and is used to detect the CO2 content of the air.
call for pricing

VCP CO2R-Series - CO2 Transmitter w/- Humidity & Temp options

The CO2R-series can measure Carbon Dioxide (Co2) ranges of 400-2.000 ppm, 0-2.000 ppm, 0-5.000 ppm, 0-10.000 ppm
from $357.00 (ex gst)

Carbon Monoxide (CO) Detector COW-series

The VCP Carbon Monoxide (CO) Detectors with a measuring range up to 300ppm are suitable for CO measurement in parking garages, tunnels, engine repair shops, loading bays, engine test benches, shelters, go-kart race courses etc.
from $255.00 (ex gst)

VCP Air Differential Pressure Transmitters - PAT

Flexible & Multi Functional Air Differential Pressure Transmitter PAT-series
from $296.00 (ex gst)

Room Air Quality (VOC) Transmitters QRT 24-series

The room air quality transmitters QRT 24 series for the measurement of VOC's (Volatile Organic Compounds)
$300.00 (ex gst)

Duct Air Quality (VOC) Transmitter QDT 24

The Duct air quality transmitters QDT 24 series for the measurement of VOC's (Volatile Organic Compounds)
$399.00 (ex gst)
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