0 ratings
Item #:
120350405
MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Detection Smoke Methane Liquefied Gas Sensor Module for Starter DIY Kit New 2025 for Arrival High for
Item #:
120350405
BZD 62
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery. We might cancel the product from the order and refund you if any issue arise with the delivery of this product.
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Versatile Detection
This sensor module detects multiple gases including smoke, methane, and liquefied gas, catering to various DIY projects and ensuring comprehensive safety monitoring.
User-Friendly Kit
Designed for beginners, this starter kit provides essential tools and instructions, making it easy to integrate into DIY projects, enhancing learning through practical application.
High-Sensitivity Performance
With meticulous engineering for high sensitivity, these sensors provide accurate readings, ensuring reliable detection and peace of mind in both personal and professional settings.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
-
DIY Enthusiasts
Perfect for hobbyists interested in building custom smoke and gas detection systems with reliable sensor modules.
-
Safety Innovators
Ideal for individuals or organizations developing safety solutions for home or industrial environments requiring gas detection.
-
Educational Purposes
Great for students and teachers in engineering or electronics classes seeking hands-on learning experiences with sensors.
-
Professional Installers
Not suited for professional-grade installations due to amateur-level components that may lack long-term reliability.
-
Non-technical Users
May be challenging for individuals without technical skills or knowledge in electronics to implement effectively.
-
Heavy Industrial Use
Not designed for high-compliance environments where extreme accuracy and reliability for gas detection is mandatory.
Product Description
MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Detection Smoke Methane Liquefied Gas Sensor Module for Starter DIY Kit New 2025 for Arrival High for Quality
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the main features of the MQ-2 to MQ-9 gas sensor modules?
Answer: The MQ-2 to MQ-9 series of gas sensor modules are designed to detect various gases including smoke, methane, propane, and carbon monoxide. These sensors utilize an analog output to measure gas concentration levels accurately. They are equipped with a heating element and a sensitive layer that responds to the target gas by changing its resistance. This makes them ideal for home safety systems, industrial monitoring, and DIY projects where gas detection is necessary, enhancing safety and operational functionality. -
Question:
What types of gases can the MQ-135 sensor detect?
Answer: The MQ-135 sensor is specifically designed to detect a variety of gases such as ammonia, benzene, alcohol, and smoke. It plays a crucial role in air quality monitoring applications where harmful pollutants are a concern. The sensor’s sensitivity increases with the presence of these gases, allowing for early detection. It’s widely used in environmental monitoring, HVAC systems, and even educational projects to understand air quality, making it essential for both safety and research purposes. -
Question:
Can I use these sensors for home automation projects?
Answer: Yes, the MQ series gas sensors are well-suited for home automation projects. They can be integrated with microcontrollers like Arduino or Raspberry Pi to monitor gas levels in real-time. When a specific gas concentration threshold is exceeded, the system can trigger alarms or send notifications. This feature helps in enhancing home safety by allowing homeowners to react quickly to potential gas leaks or harmful smoke, making it a popular choice among DIY enthusiasts and developers. -
Question:
How do I calibrate the MQ gas sensors?
Answer: Calibration of the MQ gas sensors typically involves exposing the sensor to a known concentration of the target gas. This can be achieved using a controlled gas environment or standard gas mixtures. By adjusting the output readings based on this known concentration, you can achieve accurate measurements. Calibration is crucial for applications requiring precise gas monitoring, ensuring your sensor provides reliable data over time and thus better preventing safety hazards. -
Question:
What power supply is needed for the MQ sensors?
Answer: The MQ sensors generally operate on a voltage range of 5V to 12V DC. They are designed to work efficiently within this range, making them compatible with various microcontroller platforms. It’s important to provide a stable power supply to avoid fluctuation in readings. For DIY applications, utilizing battery packs or USB power sources ensures that the sensors can function continuously and reliably as part of an integrated system in health and safety monitoring. -
Question:
Can the MQ sensors be used outdoors?
Answer: While MQ sensors are primarily designed for indoor use, they can be configured for outdoor applications with proper considerations. It’s essential to protect the sensors from environmental factors such as moisture, dust, and extremes of temperature. Additionally, when setting up outdoor monitoring, ensure the positioning allows for adequate airflow. Outdoor applications might include monitoring air quality near industrial sites or assessing emissions, which are critical for environmental analysis. -
Question:
Are the MQ sensors suitable for educational purposes?
Answer: Absolutely, the MQ sensors are ideal for educational purposes, particularly in STEM projects. They provide students hands-on experience in working with electronic components and understanding gas detection principles. Projects can involve creating air quality monitoring systems or simple alarm systems that illuminate lights when gas is detected. Such applications not only enrich the learning experience but also emphasize the importance of safety and environmental awareness in young learners. -
Question:
What is the difference between the MQ-4 and MQ-5 sensors?
Answer: The MQ-4 sensor is primarily designed to detect methane and natural gas, making it a common choice for applications involving gas leak detection in homes. In contrast, the MQ-5 sensor can detect both liquefied petroleum gas (LPG) and natural gas, offering broader applications in industrial environments and appliances. Understanding this difference is crucial for selecting the right sensor based on the specific gases you aim to monitor effectively. -
Question:
How long do these MQ gas sensors last?
Answer: MQ gas sensors typically have a lifespan of 2 to 5 years, depending on usage and environmental conditions. Regular usage in clean environments can extend their life, whereas exposure to harsh gases may diminish sensitivity over time. Periodic calibration assessments help maintain their accuracy. By ensuring proper maintenance and operating conditions, you can optimize the performance and longevity of your sensors, making them effective tools for years. -
Question:
Where can I buy MQ-2 to MQ-9 sensor modules in Belize?
Answer: You can purchase the MQ-2 to MQ-9 detection smoke, methane, and liquefied gas sensor modules from Ubuy. They offer a wide selection of these modules catering to starter DIY kits and more advanced users. Ubuy provides a user-friendly shopping experience that allows you to find and order the sensors you need for your projects, ensuring you have access to quality products to support your creative endeavors.
TKARETRENPA Additive Manufacturing Products Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
BZD 62
This product is not Fulfilled by Ubuy and can take minimum 10 days in delivery. We might cancel the product from the order and refund you if any issue arise with the delivery of this product.
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.