Sparkfun Smoke Sensor - MQ-2

The MQ-2 Smoke Sensor from Sparkfun is an essential device for detecting smoke and combustible gas, ranging from 300 to 10000ppm. It is commonly utilized in domestic gas leakage alarms and detectors due to its high sensitivity to propane and smoke. The sensor's conductivity is lower in clean environments and increases when smoke or flammable gas is present, thanks to the SNO₂ sensing material. The device requires some calibration, but a simple circuit makes the process of measuring conductivity changes and converting them into data relatively easy.The MQ-2 Smoke Sensor is designed for easy solderability, which can be further simplified by using Sparkfun's Gas Sensor Breakout Board. This board is not included with the MQ-2 sensor, but it's a valuable addition for those who want to simplify their setup process.The MQ-2 Smoke Sensor comes with a comprehensive datasheet that provides detailed information about the device's specifications, usage, and setup. This document serves as a valuable resource for both beginners and experienced users, offering guidance on how to get the most out of this versatile sensor.One of the unique properties of the MQ-2 Smoke Sensor is its high sensitivity to propane and smoke. This makes it an excellent choice for applications where early detection of potential hazards is crucial. Whether it's being used in a domestic setting or a commercial environment, the sensor offers reliable and accurate detection of smoke and flammable gases, contributing to safety and peace of mind.Please note that the MQ-2 Smoke Sensor does not come with any embedded videos for setup or usage. However, numerous online resources and tutorials are available to guide you through the process. These can be easily found with a simple internet search, making the setup and usage of the sensor accessible to all.