SEN0134

SEN0134 Datasheet


Analog Gas Sensor MQ9 SKU:SEN0134

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SEN0134 SEN0134 SEN0134 (pdf)
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Analog Gas Sensor MQ9 SKU:SEN0134

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Analog Gas Sensor MQ9

Contents
• 1 Introduction
• 2 Application
• 3 Specification
• 4 Connecting Diagram
• 5 Sample Code

Introduction

MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for different applications. Sensitive material of MQ-9 gas sensor is SnO2, which has a lower conductivity in clean air. It makes detection by cycling high and low temperature, and detects CO when low temperature heated by 1.5V . The sensor’s conductivity is higher along with the gas concentration rising. When high temperature heated by 5.0V , it detects Methane, Propane etc combustible gas and cleans the other gases adsorbed under low temperature.

Application
• Domestic gas leakage detector
• Industrial gas detector
• Portable gas detector

Specification
• Power supply needs 5V
• Interface type Analog
• Sensor Type Semiconductor
• Concentration:
o CO o combustible gas
• Good sensitivity to CO/Combustible gas
• High sensitivity to Methane, Propane and CO
• Long life and low cost
• Size 36.4x26.6mm

Connecting Diagram

Sample Code
///Arduino Sample Code void setup

Serial.begin 9600 //Set serial baud rate to 9600 bps void loop int val=analogRead 0 ;//Read Gas value from analog 0 Serial.println val,DEC ;//Print the value to serial port delay 100 ;

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Datasheet ID: SEN0134 509066