DFRobot Gravity Analog CO/Combustible Gas Sensor (MQ9) For Arduino

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SKU: rz24310501 Category: Gas and Dust Sensor

Description

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

The sensitivity can be adjusted by the potentiometer. The output is proportional to the density of a gas. You can use analog reading to read the data from this sensor.

Applications:

Domestic gas leakage detector
Industrial gas detector
Portable gas detector

Features:

Good sensitivity to CO/Combustible gas
High sensitivity to Methane, Propane and CO
Long life and low cost
Simple drive circuit

Specifications:

Power supply needs: 5V
Interface type: Analog
Loop Voltage: ≤10V DC
Heater Resistance: 31Ω±3Ω（Room Tem.）
Heater consumption: ≤350mW
Sensing Resistance: 2KΩ-20KΩ(in 100ppm CO )
Sensitivity: Rs(in air)/Rs(100ppm CO)≥5
Sensor Type: Semiconductor
Concentration:10-1000ppm CO ,00-10000ppm combustible gas
Good sensitivity to CO/Combustible gas
Slope: α ≤0.6(R300ppm/R100ppm CO)
Tem. Humidity: 20℃±2℃; 65%±5%RH
High sensitivity to Methane, Propane and CO
Size: 36.4×26.6mm(1.43″x1.05″)

Package Includes:

1 x DFRobot Gravity Analog CO/Combustible Gas Sensor (MQ9) For Arduino

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