When a high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature.
Applications
The 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
Wire Connections
VCC – Positive pole (5V)
GND – Negative pole
DO – TTL switch signal output
AO – Analog signal output
Specification
| 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 |
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