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Angled shot of back of PM2.5 sensor module for Arduino with laser air quality detection.-DFRobot product sku:SEN0177 image.
Angled shot of back of Arduino PM2.5 sensor showing laser air sensor for real-time air quality monitoring
Front view of PM2.5/PM10 sensor for Arduino with laser detection and status indicators
Overhead shot of pm2.5 sensor for arduino with laser air detection
Angled shot of PM2.5 sensor for Arduino - laser air quality detection for 0.3-10 micron particles
angled shot of back of laser pm2.5 air quality sensor for arduino with adjustable controls
Angled shot of Arduino PM2.5 sensor with laser detection for air quality monitoring
Angled shot of back of Arduino PM2.5 Sensor with Laser Detection
Angled shot of Arduino PM2.5 sensor detecting air particles with laser technology.
Detail of laser sensor module with textured surface, showcasing Arduino PM2.5 and PM10 detection capabilities.
Angled shot of Arduino PM2.5 Sensor with laser detection feature, metallic surface details

Gravity: Laser PM2.5 Air Quality Sensor For Arduino

$46.90
SKU: SEN0177
Digital PM2.5 sensor for measuring particulate concentration in air from 0.3 to 10 microns. Outputs data digitally, suitable for various environments.
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  • I2C
    I2C
    $39.90
  • Serial Port
    Serial Port
    $46.90
Introduction Features Applications Specification Shipping List Documents

Introduction

Gravity: Laser PM2.5 Air Quality Sensor for Arduino provides accurate digital measurement of airborne particulate matter using laser scattering technology. This compact environmental sensing module detects suspended particles ranging from 0.3μm to 10μm and calculates concentration levels within a unit volume of air. Integrated signal processing outputs stable digital data that can be easily integrated into monitoring systems. Designed for embedded air monitoring solutions, this particulate detection module fits environmental instruments that measure suspended particles in the air, enabling reliable real‑time air quality analysis across indoor or outdoor environments.

Gravity: Laser PM2.5 Air Quality Sensor For Arduino

Figure: Gravity: Laser PM2.5 Air Quality Sensor For Arduino


Laser Scattering Particle Detection

This laser-based particulate monitoring module measures particle sizes across three ranges: 0.3–1.0μm, 1.0–2.5μm, and 2.5–10μm. Internal optical sensing analyzes scattered light patterns produced when airborne particles pass through the laser beam. Integrated algorithms convert these optical signals into accurate particulate concentration values, enabling reliable PM1.0, PM2.5, and PM10 detection. Such capability supports environmental monitoring equipment, smart air purification systems, and indoor air quality research instruments.


Digital Output for Embedded Systems

This digital air quality sensing board outputs particle concentration data through a stable digital interface, allowing direct integration with microcontroller platforms and environmental monitoring controllers. Compared with analog particulate sensors, the digital communication approach reduces signal noise and simplifies firmware development. The sensing board can therefore operate as a core detection component within intelligent ventilation controllers, IoT environmental monitors, and smart building automation systems.


Compact Structure for Continuous Monitoring

The compact particle concentration sensor integrates laser emitter, air channel, fan mechanism, and signal processor inside a small enclosure measuring only 46 × 35 × 20 mm. Low standby current and fast response performance support long‑term environmental monitoring tasks. With a response time under 10 seconds and reliable long‑life operation, this gravity‑compatible air monitoring sensor is suitable for continuous air quality logging systems and portable pollution detection instruments.


Such laser particulate sensing technology is widely used in environmental monitoring devices, smart home air quality detectors, industrial dust monitoring equipment, and educational environmental science experiments. Accurate detection of PM1.0, PM2.5, and PM10 particle concentrations makes this environmental sensing module suitable for air purification control systems, pollution monitoring stations, and indoor air quality research platforms.

Features

  • Laser scattering technology for accurate particulate detection
  • Detects particle sizes: 0.3–1.0μm, 1.0–2.5μm, and 2.5–10μm
  • Digital interface output for microcontroller integration
  • Fast response time ≤10 seconds
  • Compact structure suitable for embedded air monitoring systems
  • Low standby current for continuous environmental sensing
  • Supports PM1.0, PM2.5, and PM10 particle concentration monitoring

    • Applications

  • Indoor air quality monitoring systems
  • Smart home air purification controllers
  • Environmental monitoring stations
  • IoT pollution detection devices
  • Industrial dust concentration monitoring
  • STEM environmental science experiments

    • Specification

  • voltage: 4.95 ~ 5.05V
  • Maximum electric current: 120mA
  • Measuring pm diameter: 0.3~1.0/1.0~2.5/2.5~10 (um)
  • Measuring pm range: 0~1000 ug/m3
  • Standby Current: ≤200 uA
  • Response time: ≤10 s
  • Operating temperature range: -20 ~ 50C
  • Operating humidity range: 0 ~ 80% RH
  • Maximum size: 46 * 35 * 20mm (1.82 x 1.38 x 0.79 inches)
  • MTBF: > = 5 years

    • Shipping List

  • PM2.5 laser dust sensor x1
  • PM2.5 sensor adapter x1
  • sensor adapter cable x1

    • Documents

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