Description:
The MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module is an ideal solution for detecting methane (CH4) and Compressed Natural Gas (CNG) in the air. This sensor is designed to be simple to use and comes with dual outputs—analog and TTL digital—making it easy to interface with microcontrollers and circuits. With a detection range of 200 to 10,000 ppm, this sensor can effectively monitor natural gas concentrations and trigger alerts when the gas exceeds a specified threshold. An onboard LED indicator signals the presence of any gas.
Dual Output Signals: Provides both analog (0-5V) and TTL digital output signals.
Adjustable Sensitivity: The onboard potentiometer allows you to set the maximum gas concentration to trigger the digital output.
Wide Detection Range: Detects methane and CNG concentrations from 200 to 10,000 ppm.
Easy Integration: The TTL output is a low-level signal that can be easily connected to microcontrollers or relay modules.
Quick Response & Recovery: Fast detection of gas concentrations with rapid response and recovery times.
Long Lifespan: Designed for long-term use with stable performance.
LED Indicator: Visual signal for gas presence and leakage detection.
Operating Voltage: 5V DC
Output Types: Analog output (0-5V) and Digital output (TTL)
Detection Range: 200 to 10,000 ppm (methane and CNG)
Material: Sensitive semiconductor material for accurate detection
Response Time: Fast response and recovery
Sensitivity Adjustment: Adjustable via onboard potentiometer
VCC: Positive pole (5V)
GND: Ground
AOUT: Analog output (for gas concentration readings)
DOUT: Digital output (TTL, for triggering actions)
Natural Gas Detection: Ideal for detecting methane and CNG in industrial and home environments.
Gas Leak Safety Systems: Can be used in gas leak monitoring and safety devices.
Air Quality Monitoring: Used for measuring gas concentrations in both household and industrial settings.
Product specifications may vary, and the actual product may differ slightly in color or design.
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