{"title":"Octopus PM2.5 module","handle":"octopus-pm2-5-module","url":"/products/octopus-pm2-5-module","description":"The Octopus PM2.5 module from ElecFreaks is a laser-based particulate matter sensor built around the ZH03B dust sensor. It measures PM2.5 concentration in the air with high consistency and real-time response, capable of detecting particles as small as 0.3 µm in diameter.\n\nPart of the Octopus electronic brick series, it features both a 3-pin GVS interface (PWM output) and a 4-pin serial output, making it compatible with micro:bit, Arduino, and other 3.3 V or 5 V microcontrollers.\n\nKey Features\n\n\nZH03B Laser Dust Sensor – High-accuracy PM2.5 concentration measurement\n\n0.3 µm Minimum Particle Size – Detects fine particulate matter\n\nDual Output – 3-pin GVS (3.3 V PWM) and 4-pin serial (3.3 V UART)\n\n3.3 V / 5 V Compatible – Works with micro:bit, Arduino, and similar boards\n\nReal-Time Response – Continuous air quality monitoring\n\n\nSpecifications\n\n\nSensor – ZH03B laser dust sensor\n\nMeasurement – PM2.5 concentration (µg/m³)\n\nMinimum Particle Size – 0.3 µm\n\nInterfaces – 3-pin GVS (PWM) and 4-pin serial (UART)\n\nOperating Voltage – 3.3–5 V\n\n\nIdeal For\n\nAir quality monitoring stations\nEnvironmental science projects with micro:bit\nIndoor air quality sensing\nArduino and microcontroller pollution monitoring\n\n\nResources\n\nMakeCode Example Programme (micro:bit)\n","vendor":"ElecFreaks","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3973,"title":"Default Title","sku":"EF-EF04090","price":72.92,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}