The Grove – Laser PM2.5 Sensor (HM3301) is a next-generation laser-based dust detection sensor designed for continuous and real-time monitoring of airborne particulate matter. Utilizing laser light scattering technology and a fan-driven airflow system, it delivers highly stable, low-noise, and ultra-low power consumption performance, making it perfect for integration into air purifiers, air conditioners, air quality monitors, and a wide range of IoT environmental sensing projects.

Key Features

• Real-Time Detection: Continuous and accurate monitoring of dust concentration.

• High Sensitivity: Detects particles as small as 0.3 m.

• Stable and Consistent Output: Laser scattering technology ensures high reliability and accuracy.

• Low Power Consumption: Ideal for portable and energy-efficient applications.

• Grove IC Interface: Plug-and-play connection for Arduino, Raspberry Pi, and other development platforms.

How It Works

Unlike traditional pumping dust sensors, the HM3301 uses a small fan to drive ambient air into the detection chamber. Particles are illuminated by a laser, and their scattering patterns are analyzed to determine the concentration of PM2.5, PM10, and total suspended particles (TSP).

Applications

• Air Purifiers and Smart Air Conditioners

• Air Quality Monitoring Systems

• Industrial PM2.5/PM10 Analysis

• Dust and Smoke Detection

• Environmental and Haze Monitoring

• Multichannel Particle Counters

• DIY IoT Environmental Projects

Specifications

Part List

• Grove – Laser PM2.5 Sensor (HM3301) 1

• Grove Cable 1

Expand to Industrial Solutions

Easily upgrade your system with the SenseCAP S2110 controller and S2100 data logger, transforming Grove modules into LoRaWAN-enabled industrial-grade devices.