Air quality monitor selection tool

Guidance on choosing low-cost sensors to monitor indoor and outdoor air pollution


Understanding air pollution levels can help you address potential health risks by taking action to reduce your exposure. This website aims to help Australians choose low-cost sensors to monitor indoor or outdoor air by providing:

This guidance does not cover indoor carbon dioxide (CO2) monitors, often used to check whether indoor ventilation is adequate. Learn more about CO2 monitors and ways to improve indoor air quality at Clean Air Stars.

How to use this tool

Make your selections below, then browse the list to find the right monitor for your project. (Read more about these categories and numbers.)

  1. Decide whether you need an indoor or outdoor (stationary) device. A small subset of products can be used both indoors and outdoors. There’s also a growing number of hand-held portable devices.
  2. Decide on your budget. This tool only covers devices less than AUD$10,000.*
  3. Decide which pollutants you’d like to measure. PM2.5 is a key polluting particle. Nitrogen dioxide (NO2) is a commonly-measured polluting gas.

*Prices given are a rough guide only. Contact sellers for accurate, up-to-date pricing.


Airthinx IAQ

$850

The indicative price for this device includes 3 years’ subscription for data.

Category: Indoor
Monitors these particle sizes: PM1,PM2.5,PM10
Monitors these gases: CH2O
Monitors volatile organic compounds (VOCs):
Data transmission: LTE/HSPA, HSPA/GPRS, 3G/4G, Wi-Fi, Bluetooth 4.0, Mesh (Zigbee)
Data display: Web, App
Data storage: Cloud
Size: 110 x 66 x 130mm
Weight: 0.18kg
Power options: Plug-in (micro USB)
Product page: https://airthinx.io/iaq/
Sensor accuracy (R2 value):
  • PM1: 0.87-0.91
  • PM2.5:  0.74-0.78
  • PM10: 0.08-0.11

Source: South Coast AQMD