MQ4 - Methane Natural Gas Sensor Module
Description:
MQ4 Methane Natural Gas Sensor Module is a highly sensitive and reliable sensor designed for detecting the presence of methane (CH₄), natural gas, and other combustible gases in the environment. This module uses the MQ4 gas sensor, which is a metal oxide semiconductor sensor known for its fast response time, stable performance, and wide detection range.
Features:
1. Detects Methane (CH₄), Natural Gas, and Combustible Gases
2. High Sensitivity to Methane Gas
3. Wide Detection Range with Fast Response Time
4. Dual Output: Analog (AO) and Digital (DO)
5. Adjustable Sensitivity via On-board Potentiometer
6. Long Life Span and Stable Performance
7. Built-in Power and Output Indicator LEDs
8. Easy to Interface with Arduino and Other MCUs
9. Suitable for Indoor Gas Leak Detection
Diagram:
Specifications:
| Sensor Type | MQ-4 Semiconductor Gas Sensor |
| Detection Gas | Methane (CH₄), Natural Gas, LPG, Propane, Butane, Alcohol, Hydrogen |
| Detection Concentration | 200 ppm ~ 10,000 ppm |
| Operating Voltage | DC 3.3V ~ 5V |
| Output Type | Analog (AO) and Digital (DO) |
| Heater Voltage | 5V ± 0.1V |
| Response Time | <10 seconds |
| Recovery Time | <30 seconds |
| Operating Temperature | -10°C ~ +50°C |
| Humidity Range | ≤ 95% RH |
| PCB Dimensions | 32mm x 20mm |
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