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Small rectangular circuit board with silver metal sensor housing and black connector

Seeed Studio

Seeed Studio Grove Laser PM2.5 Dust Sensor HM3301

SKU CH-WAJW-X6MAN

Laser dust sensor detects particles from .3 µm, Grove plug-and-play for air-quality projects

  • Product typeSensors
  • Real-time air quality monitoring with continuous dust concentration detection
  • High sensitivity captures particles from .3 µm upwards for precise measurement
  • Laser scattering technology delivers stable, accurate and consistent readings
  • Ultra-low power consumption and low noise suit battery-powered IoT devices
  • Grove plug-and-play interface simplifies integration across 400+ compatible modules

Laser Dust Sensor for Air Quality Projects

The Grove Laser PM2.5 Dust Sensor HM3301 detects airborne particles of .3 micrometres and larger in real time. It uses laser light scattering with an internal fan to draw air through the detection chamber. The module is designed for continuous monitoring in air purifiers, ventilation systems and environmental IoT devices.

Continuous Operation with Low Power Draw

The sensor provides stable, consistent readings during sustained use thanks to its low-noise, ultra-low power design. Fan-driven airflow replaces traditional pumping methods, enabling uninterrupted sampling without high energy demands. This makes it suitable for always-on applications such as smart air conditioners and haze meters.

Check Grove Compatibility and Voltage Requirements

Verify that your development board supports the Grove interface for plug-and-play connection. Confirm the operating voltage matches your system before integrating the module. The sensor is one of over 400 Grove modules, so ensure your project enclosure accommodates its form factor.

How it compares

Measured against everything we stock in Sensors, Transducers & Thermometers, at today’s prices. Recalculated every night.

Price $53.99
Pricier than about 59% of the 255 comparable items (median $39.99).

Specifications

Product
Product typeSensors

Questions about this item

How much power does the HM3301 sensor draw when it runs continuously all day?

The module is specified for ultra-low power consumption and low noise during continuous real-time operation.

Which host boards or cables must I already have to connect this Grove sensor?

Any board with a standard Grove port works; the sensor uses the plug-and-play Grove interface for power and data.

Will the HM3301 work alongside my older Arduino Uno without extra level-shifting?

Yes, the Grove system is designed for direct compatibility with Arduino boards including the Uno.

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