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. This laser PM2.5 PM10 sensor provides precise particle measurement for environmental projects. 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. This PM2.5 PM10 sensor for Arduino is designed for seamless data integration. 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. Using this PM2.5 PM10 sensor for ESP32 or Arduino allows for advanced air quality tracking in any IoT application. 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 of this PM2.5 PM10 sensor is then sent to a connected MCU as a digital signal. Features Laser scattering technology for high accuracy PM2.5 PM10 detection Real-time response with continuous data acquisition for air quality monitoring Zero false alarm rate for reliable particulate matter sensing Minimum detectable particle size: 0.3µm 360° shielding for enhanced anti-interference performance Compact 12mm thickness, perfect for embedded PM2.5 PM10 sensor systems Applications Air purifiers and environmental equipment using PM2.5 PM10 sensors Indoor air monitoring systems for real-time safety Smart home and HVAC integration with laser PM2.5 sensor technology Smoke detection and dust monitoring via particle sensors Portable air quality meters utilizing the Gravity PM2.5 PM10 sensor module 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
