4948961421033472Elecfreaks Octopus PM2.5 module PM2.5 Electronic brick is one of the modules in OCTOPUS series to test the PM2.5 concentration . Based on ZH03 laser dust sensors, it can test the dust particle Product #: businesspro-Elecfreaks Octopus PM2.5 modulehttps://www.businesspro.store/i/RlQ3fggAA2024-12-02 Regular price: $HKD$300.0 Available from: Businesspro MallIn stock