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. Features Real-Time Detection: Continuous and accurate monitoring of dust concentration. High Sensitivity: Detects particles as small as 0.3 μm. Stable and Consistent Output: Laser scattering technology ensures high reliability and accuracy. Low Power Consumption: Ideal for portable and energy-efficient applications. 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 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 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 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.
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