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Air Quality Monitor (PM 2.5, Formaldehyde, Temperature & Humidity Sensor)

SKU: SEN0233

$40.10 AUD, inc GST
$36.45 AUD, exc GST
Air Quality Monitor (PM 2.5, Formaldehyde, Temperature & Humidity Sensor)
40.0956 AUD

SKU: SEN0233

$40.10 AUD, inc GST
$36.45 AUD, exc GST
In stock, with a short lead time. 103 units dispatch in 3 to 5 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Mon, 30th of Jul with Express Post within Australia.


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.


This is a multifunction air quality monitor that can be detected not only the concentration of particles and formaldehyde but also the value of temperature and humidity. As the particle concentration sensor it can be used to obtain the number of suspended particles in the air by laser. It also integrates in it an electrochemical probe for formaldehyde and an one- chip sensor for temperature and humidity. The sensor can be inserted into variable instruments related to the environment parameters in the air or other environmental improvement equipments to provide correct data in time. 

Working principle: Laser scattering principle is used for such sensor, i.e. produce scattering by using laser to radiate suspending particles in the air, then collect scattering light in a certain degree, and finally obtain the curve of scattering light change with time. In the end, equivalent particle diameter and the number of particles with different diameter per unit volume can be calculated by microprocessor based on MIE theory. Please find the functional diagram of each part of sensor from Figure 1 as follows. The function of formaldehyde detector is based on the electrochemical theory and math algorithm.


  • Zero false alarm rate
  • Real-time response
  • Correct data
  • Minimum distinguishable particle diameter :0.3 micrometer
  • High anti-interference performance because of the patent structure of six sides shielding
  • Optional direction of air inlet and outlet in order to adapt the different design
  • Concentration of Formaldehyde output
  • Temperature and Humidity output
  • Specification

  • Operating Voltage: 5.0VDC
  • Active Current: 100 mA
  • Standby Current: ≤200 uA
  • Interface Level: L <[email protected]; H> [email protected]
  • Particle Range of measurement: 0.3 ~ 1.0μm; 1.0 ~ 2.5μm; 2.5 ~ 10μm
  • Particle Counting Efficiency: 50%@0.3μm 98%@>=0.5μm
  • Particle Effective Range (PM2.5 standard): 0 ~ 500μg/m
  • Particle Maximum Range (PM2.5 standard)*: >0 ~ 2000ug / m³
  • Particle Resolution: 1ug / m³
  • Particle Maximum Consistency Error (PM2.5 standard data)*: ±10%@100~500μg/m³ ±10μg/m³@0~100μg/m³
  • Particle Standard Volume: 0.1 L
  • Formaldehyde Effective Range: 0 ~ 1 mg / m³
  • Formaldehyde Maximum Range: 0 ~ 2 mg / m³
  • Formaldehyde Resolution: 0.001
  • Formaldehyde Maximum Consistency Error: <± 5%
  • Temperature Maximum Range: -20~99 ℃
  • Temperature Resolution: 0.1 ℃
  • Temperature Maximum Error: ± 0.5 ℃
  • Humidity Maximum Range: 0 ~ 99%
  • Humidity Resolution: 0.1%
  • Humidity Maximum Error: ± 2%
  • Weight: 50g
  • Default Baud rate: 9600bps
  • Total Response time: ≤ 10s
  • Operating Temperature Range: -10 ~ +60 ℃
  • Working Humidity Range: 0~99%
  • MTTF: ≥ 3 years
  • Dimension: 50 * 38 * 21 mm/1.97*1.50*0.83 inches
  • Documents

    Product WIKI
    More Documents

    Parts List

  • Air Quality Monitor (PM 2.5, Formaldehyde, Temperature & Humidity Sensor) x1
  • 8-Pin Cable x1
  • PM2.5 Adapter Board x1
  • Documentation and Resources:

    Product Comments

    Exact shipping can be calculated on the view cart page (no login required).

    We deliver Australia-wide with these options:

    • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
    • $6.95 for Standard Post (2-4 days, tracked)
    • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
    • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

    International Orders - the following rates are for New Zealand and will vary for other countries:

    • $11.49 for Pack and Track (3+ days, tracked)
    • $16.50 for Express International (2-5 days, tracked)

    If you order lots of gear, the postage amount might increment based on the weight of your order.

    Our physical address (here's a PDF which includes other key business details):

    Unit 18, 132 Garden Grove Parade
    NSW, 2289

    Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

    Have a product question? We're here to help!