Gravity: PM2.5 Air Quality Sensor

€47,88
€47,88
€39,90
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As awareness of air quality grows, monitoring particulate matter like PM2.5, PM1.0, and PM10 has become essential. The Gravity: PM2.5 Air Quality Sensor by DFRobot offers a highly reliable and accurate solution for real-time air quality detection, based on laser scattering technology.

The sensor uses a digital universal particle sensing module to continuously collect and calculate the number and size distribution of suspended particulate matter in the air. Leveraging the MIE scattering theory, it delivers precise data on particle concentration via a simple and efficient I2C interface.

Its compact and ultra-thin design (12mm) makes it ideal for portable environmental monitoring devices, while the Gravity interface ensures easy integration with mainstream microcontrollers like Arduino.

How It Works

A laser light source illuminates airborne particles, causing scattering. The scattered light is collected and analyzed by a microprocessor, which calculates the particle size and concentration using an advanced algorithm. The output is then sent to a connected MCU as a digital signal.

Key Features

  • Laser scattering technology for high accuracy

  • Real-time response with continuous data acquisition

  • Zero false alarm rate

  • Minimum detectable particle size: 0.3µm

  • 360° shielding for enhanced anti-interference performance

  • Compact 12mm thickness, perfect for embedded systems

Applications

  • Air purifiers and environmental equipment

  • Indoor air monitoring systems

  • Smart home and HVAC integration

  • Smoke detection and dust monitoring

  • Portable air quality meters

Specifications

  • Working Voltage: 3.3V ~ 5V

  • Max Working Current: 100mA

  • Standby Current: ≤2mA

  • Data Interface Level: L＜0.8V, H＞2.7V (Max 3.3V)

  • Particle Measurement Range: 0.3–1.0μm, 1.0–2.5μm, 2.5–10μm

  • Counting Efficiency: 50% @ 0.3μm, 98% @ ≥0.5μm

  • Effective PM2.5 Range: 0–500μg/m³

  • Max PM2.5 Range: ≥1000μg/m³

  • Resolution: 1μg/m³

  • PM2.5 Accuracy:

    • ±10% @ 100–500μg/m³

    • ±10μg/m³ @ 0–100μg/m³

  • Standard Volume: 0.1 L

  • Single Response Time: ＜1s

  • Comprehensive Response Time: ≤10s

  • Operating Temperature: -10℃ to +60℃

  • Operating Humidity: 0–95% RH (non-condensing)

  • MTBF: ≥5 years

  • Dimensions: 67mm × 40mm × 14mm (2.64" × 1.57" × 0.55")

Shipping List

  • Gravity: PM2.5 Air Quality Sensor x1

  • Gravity-4P I2C/UART Sensor Cable x1

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