MQ-6 Liquefied Petroleum Isobutane Propane Gas Sensor Module

MQ-6 Liquefied Petroleum Isobutane Propane Gas Sensor Module is a reliable sensor designed to detect combustible gases like LPG, isobutane, and propane. It offers high sensitivity, fast response time, and ease of integration into safety, alarm, and automation systems. The onboard comparator and adjustable sensitivity make it suitable for various microcontroller applications.

Key Features:

• Detects LPG, isobutane, propane, and other combustible gases
• Analog output and digital output (threshold adjustable)
• Fast response and high sensitivity
• Long life and low cost
• Preheat time around 20 seconds

Technical Specifications:

• Operating Voltage: 5V DC
• Current Consumption: 150mA (approx.)
• Sensor Type: Semiconductor (SnO₂)
• Output: Analog (AO) and Digital (DO)
• Detection Range: 200 to 10000ppm LPG
• Heater Resistance: 31Ω ±3Ω
• Sensitivity Adjustable: Yes (via onboard potentiometer)

Mechanical Specifications:

• PCB Material: FR4
• Mounting Holes: Yes
• Pin Header: 4-pin male
• LED Indicators: Power and digital output

Dimensions:

• Module Size: Approx. 32mm x 20mm x 22mm (L x W x H)
• Sensor Diameter: Approx. 16mm
• Weight: Approx. 10g

Mounting Options:

• Screw hole mounting on base PCB
• Breadboard and PCB compatible via pin headers

Schematic Diagram, Connection, Wiring and Pinout:

• VCC: Connect to 5V power supply
• GND: Ground
• AO: Analog output (variable with gas concentration)
• DO: Digital output (triggered when gas exceeds threshold)
• Use external microcontroller ADC or GPIO to read outputs

Datasheet/User Manual:

• Download MQ-6 Gas Sensor Datasheet (PDF)

Applications:

• LPG gas leak detection systems
• Home safety and automation
• Industrial safety monitoring
• Gas leak alarms and detectors
• Robotics and embedded systems

Equivalent:

• MQ-5 (multi-gas sensor including natural gas)
• MQ-2 (LPG and smoke detection)
• MP-2 (LPG and CH₄ detection module)

Package Includes:

• 1 x MQ-6 Liquefied Petroleum Isobutane Propane Gas Sensor Module