DFROBOT Gravity PM2.5 Air Quality Sensor

The DFROBOT Gravity PM2.5 Air Quality Sensor is a high-precision module designed for accurate environmental monitoring. Utilising a laser scattering principle, it delivers reliable measurement of key particulate matter concentrations, including PM1.0, PM2.5, and PM10. Its easy-to-use Gravity interface ensures seamless integration with a wide range of popular main-controllers and development boards, such as the Arduino UNO R3, making it an ideal choice for both educational projects and professional air quality monitoring systems.

Engineered for performance, the sensor features a six-sided all-round shielding design that provides stronger anti-interference capabilities, ensuring stable readings even in electrically noisy environments. With a real-time response and support for continuous data acquisition, it offers immediate feedback on air quality changes. The ultra-thin profile of just 12mm makes it perfectly suited for integration into portable devices and compact applications.

Key Features & Specifications

• Measurement Principle: Advanced laser scattering for high accuracy.
• Measured Particulates: PM1.0, PM2.5, and PM10.
• Minimum Recognisable Particle Size: 0.3µm.
• Particle Counting Efficiency: 50% at 0.3μm; 98% at ≥0.5μm.
• Design: Ultra-thin (12mm) with six-sided shielding for robust anti-interference.
• Electrical: Operating voltage of 5.0V DC, with a maximum working current of 100mA and a low standby current of ≤2mA.
• Interface: Gravity-compatible 4-pin I2C/UART connection for plug-and-play simplicity.
• Compact Dimensions: Product size is 67mm x 40mm x 14mm.

This sensor is supplied complete with a Gravity-4P I2C/UART sensor cable, providing everything you need to start measuring air quality immediately. It's an essential tool for creating smart home systems, educational science kits, environmental research stations, or any