Looking for Mq-2 Sensor? Waveshare MQ-2 Gas Sensor is available at Zbotic with fast shipping across India.
The sensor detects the concentration of LPG, propane and hydrogen in the air, the result can be obtained by measuring the voltage on the analog output. The system is powered with a voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with most of the commissioning modules, including Raspberry PiandArduino.
Operating principle:
MQ-2 gas sensor applies SnO2 which has a lower conductivity in the clear air as a gas-sensing material. In an atmosphere where there may be inflammable gases, the conductivity of the gas sensor raises along with the inflammable gas concentration increases. MQ-2 performs a good detection to different inflammable gases such as natural gas, especially sensitive to liquefied gas, propane and hydrogen. Its ability to detect various inflammable gases and lower cost make it an ideal choice of different applications of gas detection.
Features:
- Sensitive for LPG, propane, hydrogen
- Output voltage boosts along with the concentration of the measured gases increases
- Fast response and recovery
- Features boost circuit
- Adjustable sensitivity
- Signal output indicator
Package Includes:
1 x MQ-2 Gas Sensor
1 x 4-pin custom connector jumper wire
About Mq-2 Sensor
Waveshare MQ-2 Gas Sensor is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by WAVESHARE, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.
Product Details
- Brand: WAVESHARE
- SKU: AI2063
- Category: Gas and Dust Sensor
Why Buy from Zbotic?
Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Mq-2 Sensor and other products.
Applications
Mq-2 Sensor can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Mq-2 Sensor today and start building.
Waveshare MQ-2 Gas Sensor Overview
The Waveshare MQ-2 Gas Sensor is a compact detection module designed to monitor concentrations of LPG, propane and hydrogen in air. It provides both analog voltage and digital threshold outputs and operates from 2.5 V to 5 V, making it ideal for integration with Arduino, Raspberry Pi and similar development boards.
Key Features of Waveshare MQ-2 Gas Sensor
- Detects LPG, propane and hydrogen with high sensitivity
- Dual output: analog voltage for concentration measurement and digital signal for threshold alarms
- Wide operating voltage range: 2.5 V to 5 V
- SnO₂-based sensing element with conductivity change principle
- Onboard potentiometer for setting digital output threshold
- Genuine Waveshare module, fast shipping from Zbotic across India
Applications and Use Cases
- Home kitchen gas-leak detection systems for LPG safety
- Propane monitoring on outdoor grills and heating appliances
- Hydrogen leak detection in laboratory or workshop environments
- DIY air-quality and combustible-gas monitoring projects
- Industrial safety alarms for combustible gas environments
- Educational electronics experiments with microcontroller platforms
How to Use Waveshare MQ-2 Gas Sensor
Connect VCC to a stable 2.5 V–5 V supply and GND to ground. For analog readings, wire the AO pin to an ADC input on your Arduino or to an external ADC module if using Raspberry Pi. Adjust the onboard potentiometer to set your desired gas threshold and read the DO pin on any digital GPIO. Allow the sensor to warm up for a few minutes to stabilize the SnO₂ element, then calibrate in clean air before taking measurements.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Which gases can the Waveshare MQ-2 detect?
The MQ-2 sensor is optimized for detecting flammable gases such as LPG, propane and hydrogen, with conductivity changes proportional to gas concentration.
What power supply does the MQ-2 module require?
The module operates on a DC voltage between 2.5 V and 5 V. You can power it directly from a 5 V Arduino pin or from a 3.3 V–5 V supply on a Raspberry Pi via a level shifter if needed.
How do I read and interpret the sensor outputs?
Use the AO pin to get a continuous voltage proportional to gas concentration via an ADC. The DO pin provides a digital HIGH/LOW signal once the onboard potentiometer threshold is crossed, enabling simple alarm or relay control.
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Read More →Technical Specifications
| Brand | WAVESHARE |
|---|---|
| Model | MQ-2 |
| SKU | AI2063 |
| Weight | 0.01291 kg |
| Availability | In Stock |
Applications & Use Cases
The Waveshare MQ-2 Gas Sensor is a versatile gas and dust sensor used across a wide range of applications including air quality monitoring, gas leak detection, industrial safety, HVAC systems, and environmental monitoring.
Common use cases:
- Building a gas leak alarm for LPG/methane
- Monitoring indoor air quality (CO2, VOC)
- Dust monitoring in a workshop
This product is ideal for environmental engineers, safety professionals, and IoT developers.
Technical Tip: MQ-series sensors need a warm-up period (24-48 hours for first use). Calibrate in clean air for accurate readings.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels
