MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module


This is MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor Module can be used to sense Carbon Monoxide and Methane Gas. Sensitive material of the MQ9 gas sensor is SnO2, which with lower conductivity in clean air. It makes detection by the method of cycle high and low temperature, and detect CO when the low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising.

Add to Wishlist
Add to Wishlist

When a high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature.
The domestic gas leakage detector
Industrial gas detector
Portable gas detector
Good sensitivity to CO/Combustible Gas
High sensitivity to Methane, Propane, and CO
Long life and low cost
Simple drive circuit
Wire Connections
VCC – Positive pole (5V)
GND – Negative pole
DO – TTL switch signal output
AO – Analog signal output

Model MQ-9
Operating Voltage (VDC) 5
Current Consumption (mA) 150
Do output TTL digital 0 and 1 (0.1 and 5V)
Ao output 0.1-0.3V (relatively clean)
Length (mm) 32
Width (mm) 20
Height (mm) 16
Weight (gm) 5


There are no reviews yet.

Be the first to review “MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module”

Your email address will not be published. Required fields are marked *

Shopping Cart