{"title":"Gravity: PM2.5 Air Quality Sensor","handle":"gravity-pm2-5-air-quality-sensor","url":"/products/gravity-pm2-5-air-quality-sensor","description":"The Gravity PM2.5 Air Quality Sensor uses laser scattering to measure suspended particulate matter in three size ranges — PM1.0, PM2.5, and PM10 — and outputs concentration data via I2C. With a minimum detectable particle size of 0.3 µm and a response time under 1 second, it provides real-time, accurate air quality readings.\n\nThe Gravity interface and included sample code make it straightforward to integrate with Arduino and other main controllers for indoor air quality monitoring, environmental data logging, and smart ventilation systems.\n\nKey Features\n\n\nLaser Scattering Measurement – Accurate particulate detection with zero false alarm rate\n\nThree Particle Ranges – 0.3–1.0 µm, 1.0–2.5 µm, and 2.5–10 µm\n\nI2C Data Output – Easy integration with microcontrollers\n\nGravity Interface – Plug-and-play with DFRobot ecosystem\n\nUltra-Thin Design – Only 12 mm thick, suitable for portable devices\n\nSix-Sided Shielding – Enhanced electromagnetic interference protection\n\nReal-Time & Continuous – Single response <1 s, comprehensive response ≤10 s\n\n\nSpecifications\n\n\nWorking Voltage – 5.0 V\n\nMax Current – 100 mA (standby ≤2 mA)\n\nPM2.5 Effective Range – 0–500 µg/m³\n\nPM2.5 Maximum Range – ≥1000 µg/m³\n\nResolution – 1 µg/m³\n\nCounting Efficiency – 50% @ 0.3 µm, 98% @ ≥0.5 µm\n\nConsistency – ±10% @ 100–500 µg/m³; ±10 µg/m³ @ 0–100 µg/m³\n\nData Interface Level – Low <0.8 V, High >2.7 V (max 3.3 V)\n\nOperating Temperature – −10 °C to +60 °C\n\nOperating Humidity – 0–95% RH (non-condensing)\n\nMTBF – ≥5 years\n\nDimensions – 67 × 40 × 14 mm\n\n\nIdeal For\n\nIndoor air quality monitoring stations\nSmart ventilation and HVAC control\nEnvironmental data logging projects\nPortable air quality meters\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3166,"title":"Default Title","sku":"DF-SEN0460","price":67.73,"on_sale":false,"in_stock":true,"available_quantity":358,"option1":"Default Title"}]}