Gravity: Analog CH4 Gas Sensor (MQ4) For Arduino

Description

This is an Arduino CH4 gas sensor. It uses MQ4 probe which is able to detect nature gas, CH4. It is less sensitivity in detecting alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. The output is proportional to the density of gas. You can use analog reading to read the data from this sensor. To ease the difficulty of using this sensor, a Gravity Interface is adapted to allow plug&play. The Arduino IO expansion shield is the best match for this senor connecting to your Arduino microcontroller . Improvement List Standard assembling structure (Times-of-5mm Center distance between two 3mm(0.12") mounting holes) Easily recognitive interfaces of sensors ("A" for analog and "D" for digital) Icons to simplely illustrate sensor function High quality connector Immersion gold surface SPECIFICATION Power supply: 5V Interface type: Analog Pin Definition: 1-Output 2-GND 3-VCC High sensitivity to CH4，Natural gas Small sensitivity to alcohol, smoke Fast response Stable and long life Simple drive circuit Size: 40x20mm(1.57"x0.79") DOCUMENTS Wiki Doc MQ4 datasheet SHIPPING LIST Arduino CH4 Gas sensor (MQ4) x1