

MQ-5 LPG & Natural Gas Sensor Module
The MQ-5 Gas Sensor Module is expertly designed to detect the presence of common household and industrial combustible gases, primarily LPG and natural gas (methane). The sensor's core component is a Tin Dioxide (SnO2) semiconductor, which exhibits low conductivity in clean air. When combustible gas is detected, the sensor's conductivity increases in direct proportion to the gas concentration. This module conveniently provides both an analog output for measuring gas concentration levels and a digital output for triggering an alarm or action when the gas level exceeds a preset threshold. The trigger threshold can be easily calibrated using the onboard potentiometer, making it highly adaptable for various applications.
Key Features:
High Sensitivity: Excellent detection capabilities for LPG, Natural Gas, and also sensitive to Methane and Propane.
Dual Output Mode: Equipped with both analog (A0) and digital (D0) outputs for flexible integration with microcontrollers like Arduino.
Adjustable Threshold: Features an onboard potentiometer to precisely set the concentration level for the digital output trigger.
Fast Response Time: Ensures timely detection of gas leaks for critical safety applications.
Stable and Durable: Engineered for a long operational life and consistent performance.
Technical Specifications:
Operating Voltage: 5V DC
Primary Detection Gases: LPG (Liquefied Petroleum Gas), Natural Gas, Methane
Detection Range: 200 to 10,000 ppm (parts per million)
Outputs: Analog Voltage Output & Digital Output (TTL)
Dimensions: 32mm x 20mm x 22mm
Preheat Time: Minimum 20 seconds for stable operation
Common Applications:
Home Safety Systems: Perfect for building reliable domestic gas leak detectors and alarms.
Industrial Safety: Use in factories and workshops to monitor for combustible gas leaks.
Portable Gas Detectors: Design compact, portable devices for technicians and safety inspectors.
Smart Home Automation: Integrate with smart home systems to automatically shut off gas valves or trigger alerts.
Educational Projects: A great hands-on tool for learning about sensor technology and environmental safety monitoring.
Extra Description
Package Includes:
1 x MQ-5 LPG & Natural Gas Sensor Module
Why Choose This MQ-5 Gas Sensor? At Hitech Electronics & Hardware, your safety is our priority. We source high-quality MQ-5 sensors that deliver reliable and consistent readings. This module provides the accuracy and stability you need to build dependable gas detection systems, whether for a simple hobby project or a serious safety application.
Pro Tip: To ensure the highest accuracy, allow the MQ-5 sensor to warm up for about a minute upon first power-up. This "burn-in" period allows the internal heating element to reach a stable temperature, resulting in more precise and repeatable measurements.