Description This sensor performs better in providing qualitative results over a wide scope of target gases. And Please kindly notice if this sensor is exposed to highly polluted air for a long time, it might weaken its sensitivity significantly. It is used in occasions such as households and offices for harmful gas detection, automatic exhaust devices, air cleaner&etc. Application Air quality monitor Auto refresher sprayer Auto air cycling systems Technical details Dimensions 40mm x20mm x15mm Weight G. W 11g Battery Exclude Sensor Winsen MP503 Power 5V or 3.3V Part List Grove - Air quality sensor v 1.3 *1 Grove Cable *1