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
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Real-Time Detection: Continuous and accurate monitoring of dust concentration.
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High Sensitivity: Detects particles as small as 0.3 μm.
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Stable and Consistent Output: Laser scattering technology ensures high reliability and accuracy.
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Low Power Consumption: Ideal for portable and energy-efficient applications.
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Grove I²C 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
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Air Purifiers and Smart Air Conditioners
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Air Quality Monitoring Systems
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Industrial PM2.5/PM10 Analysis
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Dust and Smoke Detection
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Environmental and Haze Monitoring
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Multichannel Particle Counters
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DIY IoT Environmental Projects
Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3V / 5V |
| Operating Temperature | -10°C to 60°C |
| Operating Humidity | 10%–90% RH (non-condensing) |
| Particle Size Channels | 2.5μm, 5μm, 10μm |
| Detection Range (PM2.5) | 1–500 μg/m³ (effective), up to 1000 μg/m³ (maximum) |
| Resolution | 1 μg/m³ |
| Stability Time | 30 seconds after power-on |
| Interface | I²C |
| I2C Address | 0x40 |
| Dimensions | Standard Grove Size |
Part List
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Grove - Laser PM2.5 Sensor (HM3301) × 1
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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.