Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Compatible Sensor Models	MQ-2, MQ-3, MQ-7, MQ-9, MQ-135
Operating Voltage	5V DC
Output Interface	Digital (TTL) and Analog (0-5V)
Sensitivity Control	Adjustable Potentiometer
Response Time	Less than 10 Seconds
Heating Voltage	5.0V ± 0.1V
Circuit Board Material	FR-4 PCB
Pin Header Type	4-Pin Male Header
Operating Temperature	-10°C to 50°C
Recommended Use	Prototyping and Educational Projects

5 reviews

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for learning

Works great with Arduino IDE examples. Very easy to set up for beginners.

Anonymous

Mar 02, 2026

Rating: 5/5

Reliable output

Analog readings are consistent after the initial burn-in period. Good value for money.

Anonymous

Feb 27, 2026

Rating: 4/5

Good but hot

The sensor gets quite warm during operation which is normal, but worth noting for enclosed projects.

Anonymous

Feb 07, 2026

Rating: 5/5

Great value

Cheaper than buying individual sensors elsewhere. Works perfectly with my ESP8266.

Anonymous

Jan 27, 2026

Rating: 5/5

Fast shipping

Module arrived well packaged and undamaged. Pins were straight and ready to use.

5 FAQ

Q: Is this module compatible with 3.3V logic microcontrollers?

A: The module operates at 5V. You may need a logic level converter when interfacing with 3.3V MCUs.

Q: Can I use this for a certified home safety alarm system?

A: No, these are for prototyping only. Please use certified industrial equipment for critical safety applications.

Q: What is the expected lifespan of the sensor element?

A: Typically 1 to 2 years depending on the usage environment and gas exposure levels.

Q: Are code examples included with the purchase?

A: Yes, basic examples and library links are provided in the product description documentation.

Q: Which model should I choose for detecting Methane?

A: The MQ-2 model is suitable for detecting methane, LPG, and propane gases.

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