ELECFREAKS PlanetX PM2.5 Sensor STEAM kits Easy to Use: The BLE-9909

Easy to Use: The BLE-9909 is designed to be user-friendly

low-noise movement

the line-following probe should be moved horizontally back and forth on the background map and the line-following track

Slice Software: Cura/Repetier/Simplify 3D

ELECFREAKS PlanetX PM2.5 Sensor STEAM kits Easy to Use: The BLE-9909PM2. 5 is the particulates in the air with a diameter less than or equal to 2. 5 microns. It usually carries heavy metals and microorganisms, and it stays in the air for a long time, which has a great impact on human health and the quality of the atmosphere. The PM2. 5 sensor is able to detect the concentration of particulates in the air around us, observe the weather, and create an experimental environment. Specifications Connections: RJ11 4P4C