P91 Dust Sensor

The AxisTech P91 Dust Sensor is an infrared particulate matter sensing device that can sense as small as 1 um particle.

AxisTech Dust Sensor

The AxisTech P91 Dust Sensor is a technological breakthrough in optical PM sensors. Its measurement principle is based on laser scattering and it makes use of Sensirion’s innovative contamination resistance technology. This technology coupled with its high-quality and durable components enables precise measurements throughout its 10-year operating capacity.

The device enables automated data reporting of dust levels on roads, urban areas and industrial environments for the management of health and safety.

For more information or if you would like to buy our AxisTech P91 Dust Sensor, please click on the ‘Enquire Now’ button below or feel free to get in touch through our email info@axistech.co



AxisTech P91 Dust Sensor


Rugged UV resistant IP enclosure
Dimensions: 46 x 34 x 17.6 mm


Laser wavelength (DIN EN 60825-1 Class 1): 660 nm
Mass Concentration Range: 0 → 1000 μg/m³
Mass Concentration Size Range
PM1.0: 0.3 to 1.0 μm
PM2.5: 0.3 to 2.5 μm
PM4: 0.3 to 4.0 μm
PM10: 0.3 to 10.0 μm Measures PM 1.0, 2.5, 4 and 10 (pollen)
Accuracy: +-3%FS
Operating Temperature: -10ºC to 65ºC


Solar with Li battery backup


Current: Sigfox
Pipeline: 4G/LTE/CatM1/NB-IoT (5G-Ready), Satellite

What's Included?
You’ll get:

  • Main unit
  • Sensor unit
  • Power supply
  • Mounting frame set (controller and bracket)
  • 12- month warranty

You’ll need to provide:

  • A mounting pole (30 x 30 mm or 30mm dia.) To be mounted 2 metres above the ground
  • 10mm spanner set for installation

To install your AxisTech P91 Dust Sensor, refer to the installation guide below:

AxisTech P91 Dust Sensor Installation Guide

Data Management

With our AxisStream data management system, all of your dust sensor data can be ingested, standardised to a uniform data model (industry or global standard) and stored in one data store that is controlled and owned by you. This well-organised and well-structured data can then be consumed in multiple ways including visualisation, insights and analysis.