Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Detection Gas | Methane (CH4), Ethane, Propane, Natural Gas |
| Output Signal | TTL Level / UART Serial Output |
| Operating Voltage | 5.0V ± 0.2V DC |
| Detection Range | 0 - 100% LEL (Lower Explosive Limit) |
| Response Time | Less than 30 seconds |
| Preheat Time | Approximately 3 minutes |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C to 60°C |
| Dimensions | 32mm x 22mm x 20mm |
| Interface Type | 4-Pin Header (VCC, GND, TX, RX) |
Anonymous
Mar 28, 2026
Rating: 4/5
Good value, requires calibration
The sensor works well out of the box, but I recommend running a fresh air calibration cycle before deployment for accurate readings. The build quality is solid for the price point. Response time is as advertised.
Anonymous
Mar 27, 2026
Rating: 5/5
Sensitive and fast
Very impressed with the sensitivity. I tested it with a controlled release of propane, and the alarm triggered via my microcontroller almost instantly. Ensure you let it warm up fully before relying on the data.
Anonymous
Mar 23, 2026
Rating: 3/5
Works but gets warm
The sensor functions correctly and detects gas accurately. However, the heating element inside gets quite hot to the touch, which is normal for this type of semiconductor sensor, but something to keep in mind for enclosure design.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for my home safety project
I integrated this module into a custom Raspberry Pi home monitoring system. The serial output is clean and easy to parse. It detected a small gas leak from a loose fitting during testing immediately. Highly recommended for DIY enthusiasts.
Anonymous
Mar 17, 2026
Rating: 5/5
Reliable detection
Using this to monitor biogas production in my small scale digester. It provides consistent readings and hasn't drifted much over the last two months. The voltage requirements are standard which makes wiring easy.
Anonymous
Mar 06, 2026
Rating: 4/5
Great for university projects
Bought this for a final year engineering project on IoT safety systems. Documentation could be slightly more detailed regarding the protocol specifics, but community forums helped fill the gaps. Works great with Arduino.
Q: Can this sensor detect carbon monoxide as well?
A: No, this specific module is optimized for combustible gases like Methane, Propane, and Ethane. For Carbon Monoxide detection, please look at our dedicated CO sensor models.
Q: Does this come with an enclosure or is it just the bare board?
A: This listing is for the bare module board only. It does not include an enclosure. You will need to design or purchase a separate case that allows for airflow to the sensor head.
Q: Is a library available for Arduino?
A: Yes, there are several open-source libraries available on GitHub compatible with this generic CH4 sensor module. We provide a sample code snippet in the product manual to get you started quickly.
Q: How often does the sensor need to be replaced?
A: Under normal operating conditions, the sensor life is typically 2 to 3 years. Lifespan may vary depending on exposure to high concentrations of gas or silicone vapors which can poison the sensor.
Q: What is the communication protocol used for the output?
A: The module uses a standard UART TTL serial interface. You can read the concentration data by connecting the TX pin to your microcontroller's RX pin and parsing the serial stream at 9600 baud.
Marie's Paper Blending Stumps Thickened Xuan Paper Blending Stumps Marie's Student Sketch Set Blending Stumps Rubbing Cotton Painting Special Paper Blending Stumps Smudging Pens Art Supplies Xuan Paper Sketch Fixative
$5.09
Inner Mongolia Milk Skin Processing Equipment - Condensed Milk and Butter Production Line, Fully Automatic Cheese Making Machine
$13,580.00
Yijiayi Plastic Surgery - Hair Follicle Analysis to Assess Growth, Prevent Hair Loss, and Plan Transplants
$10.00
Hell Training Rock Guitar by Shinichi Kobayashi - Electric Guitar Speed Playing Tutorial
$106.00
Mai Da Chu Commercial Food Warmer Cabinet, Large-Capacity Constant-Temperature Heating Cart for Banquets, Hotels, and Kitchens
$8,165.00
Children's Activity Appliance Storage Box - Case for Braces, Underbite Correctors, Expanders, and Denture Cleaning
$16.80
Stainless Steel Cable Raceway Arc-Shaped Anti-Step Floor Metal Surface Mount Decorative Invisible Wire Channel
$2.50
Electric Watercolor Spray Pen Children Hand-painted Color Pa
$46.55
408 Fast-Drying Glue - Strong Low-Whitening Instant Adhesive for Metal and Plastic, Heat Resistant
$53.12
UE5.1-5.7 Ancient Sci-Fi Gate Model Instrument Consultation
$2.00
Biliansheng Hair Transplant - Non-Shave Female Hairline Restoration & Density Enhancement
$19,999.00
Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student
$32.00
Beginner Watercolor Painting Line Art Coloring Book, Hua Meng Lv Ren by Stan, Fine Texture, 2-Pack Free Shipping
$10.60
New Wanli Tire 265/45R21 SU306+ - Compatible with AITO M7, BYD Tang, Range Rover, Li Auto, and NIO
$528.00
Suzhou Factory Wholesale Chain Store Logo - RGB Illuminated Letters, Acrylic Neon Signs for Window and Counter Display
$1,911.00
RoHS 1.0 Environmental Tester for Alloy Analysis and Heavy Metal Detection in Plastic Toys
$15.30
Mont Marte Long-Handle Bristle Brush – Professional Art Brush for Acrylics, Oil Painting, and Flat Wash Techniques
$37,500.00
Portable Plastic Backpack Fertilizer Bucket for Manual Fruit Picking, Seed Feeding, and PPC Fertilization
$9.50
Chinese-Style Hand-Drawn Plant Line Art Coloring Book on 100% Cotton Watercolor Paper
$15.80
Eagle Brand 99021 Industrial Scouring Pads, Cleaning Cloths, and Polishing Pads Supply
$666.00
Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)
$4.50
Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve
$8.60
Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store
$3.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo
$37.00
Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)
$60.95
Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)
$21.60
Jay Chou - Feng BROTHER_CHAO Piano Accompaniment Sheet Music
$50.00
Toplip Automatic Retractable Air Hose Reel, Water Drum, High-Pressure Foam Drum for Pneumatic Tools and Auto Repair
$118.00
500L Yogurt Production Line - Stand-Up Pouch Filling Machine with Complete Dairy Processing Equipment and Fermentation Tank
$13,720.00
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
