Category
- DIY Hobby Kits
- Kits & Projects
- Development Board
- CNC & 3D Printers
- Drone / Aeromodelling
- Electronics-Sensors
- Electronics-Modules
- Electronics-Camera
- Electronics-Display Devices
- Active Components
- Passive Components
- Used Parts For Sell
- Cables & Wires
- Robotics Accessories
- Miscellaneous items
- Mechanical Parts
- Motors & Actuators
- Supply- Battery & Chargers
- Tools & Equipment
Google Review


MQ4-Methane Natural Gas Sensor (CNG) Module
₹ 167.00 Original price was: ₹ 167.00.₹ 160.00Current price is: ₹ 160.00.
Quick Review:
- Operating Voltage: 5V DC
- Detection Range: 200 – 10,000 ppm
- Power Consumption: Less than 900mW
- Output: Analog and Digital
- Heater Voltage: 5V ± 0.1V
- Preheat Time: ~20 seconds
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
Out of stock
The MQ-4 Methane Natural Gas (CNG) Sensor Module is a highly sensitive and reliable sensor module used to detect methane and natural gas in the air. This module is designed for easy integration with microcontroller platforms, making it suitable for applications requiring gas detection, such as in gas leak detectors, air quality monitoring, and safety systems.
Key Features
- High Sensitivity: The MQ-4 sensor is particularly sensitive to methane (CH4) and natural gas (CNG), making it ideal for environments where methane gas monitoring is critical.
- Analog and Digital Output: The module provides both an analog voltage output that varies based on the gas concentration and a digital output that triggers when gas levels exceed a predefined threshold.
- Fast Response Time: Quick detection of gas presence ensures timely alerts in safety-critical applications.
- Adjustable Sensitivity: An onboard potentiometer allows users to adjust the sensor’s sensitivity for different application needs.
- Wide Detection Range: Detects methane levels from approximately 200 to 10,000 ppm.
Working Principle
The MQ-4 sensor module operates based on a gas-sensitive semiconductor layer, which changes resistance in the presence of methane gas. The sensor’s resistance decreases with increasing gas concentration, allowing the module to measure gas levels through its analog and digital outputs.
Technical Specifications:
- Operating Voltage: 5V DC
- Detection Range: 200 – 10,000 ppm
- Power Consumption: Less than 900mW
- Output: Analog and Digital
- Heater Voltage: 5V ± 0.1V
- Preheat Time: ~20 seconds
- VCC: positive power supply (5V)
- GND: power supply is negative
- DO: TTL switching signal output
- AO: analog signal output
Applications
- Gas leak detectors
- Portable gas detectors
- Air quality monitoring systems
- Industrial safety equipment
- Smart home safety devices
Package Includes:
- 1 Piece-MQ4-Methane Natural Gas Sensor (CNG) Module
Shipping & Delivery
We try our best to reach each and every corner of India using a few of the best courier services running in the Country such as Delhivery, DTDC, BlueDart, XpressBees, Ecom Express, etc. as per the feedback for the courier partner at the customer’s location. A few of the interior parts of India which are not covered by these courier services are covered by India-Post by us. We apply our best effort on daily basis to dispatch the order the same day it is ordered or within the next 24 hours of the order placed. Most of the orders that are placed before 1 PM are dispatched and shipped the same day. The orders placed post that is scheduled for next day shipment. The same effort is applied throughout the week including weekdays and sometimes weekends and public holidays as well. We facilitate local pickup (self-pickup for the local customers) on the weekdays and partially on weekends also.
Ercoms Warranty
All electronic items are imported, therefore, they do not come with a warranty or guarantee. Rest assured, We meticulously inspect each product before dispatch. In the rare event of any defects, replacements will be provided after a thorough examination.
This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Ercoms customers from any kind of manufacturing defects. Â Reimbursement or replacement will be done against manufacturing defects only.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
**Note: Shipping Charges Applied When Need Replacement or Refund.
Other Info
- Country of origin:Â China
- Brand/Manufacturer: Generic
- Packer/ Importer: Ercoms Robotics Lab
- No Warranty/Guarantee Of Chinese Goods.
18 reviews for MQ4-Methane Natural Gas Sensor (CNG) Module
Only logged in customers who have purchased this product may leave a review.
Related products
-
MQ7-Carbon Monoxide (CO) Gas Sensor Module
₹ 240.00Original price was: ₹ 240.00.₹ 190.00Current price is: ₹ 190.00.Add to cart Buy nowQuick Review:
- Operating Voltage: 5V DC (typically).
- Resistance: The resistance of the sensor changes with the concentration of CO, typically measured in kilo-ohms.
- Sensitivity Range: Can detect CO gas concentrations from 10 ppm to 1,000 ppm.
- Response Time: Fast response, usually a few seconds, but the sensor requires 1-2 minutes of preheating for accurate readings.
- Heater Resistance: Around 33Ω (varies slightly depending on manufacturer).
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ135-Air Quality Gas Sensor Module
₹ 164.00Original price was: ₹ 164.00.₹ 134.00Current price is: ₹ 134.00.Add to cart Buy nowQuick Review:
- Operating Voltage: 5V DC (typical).
- Sensor Resistance: The resistance of the sensor element changes based on the concentration of gases, usually measured in kilo-ohms.
- Sensitivity Range: Detects gases in the range of 10-1000 ppm, depending on the specific gas.
- Response Time: Fast response time (typically a few seconds), although it requires a 1-2 minute warm-up period for accurate readings.
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ8-Hydrogen Gas Sensor Module
₹ 165.00Original price was: ₹ 165.00.₹ 135.00Current price is: ₹ 135.00.Read moreQuick Review:
- Operating Voltage: 5V DC (typically).
- Sensor Resistance: The resistance of the sensor element changes with gas concentration, usually between a few kΩ and several hundred kΩ.
- Sensitivity Range: Can detect hydrogen gas concentrations from 100 to 10,000 ppm.
- Response Time: The sensor typically responds within a few seconds to changes in gas concentration, but it requires 1-2 minutes of preheating for optimal performance.
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ3-Alcohol Detector Gas Sensor Module
₹ 149.00Original price was: ₹ 149.00.₹ 144.00Current price is: ₹ 144.00.Add to cart Buy nowQuick Review:
- Power Supply: 5V DC
- Sensitivity Range: 25 ppm to 500 ppm (alcohol)
- Preheat Time: Requires around 24 hours of preheating for the most accurate results.
- Temperature Range: Operates between -10°C and 50°C
- Output Types:
- Analog voltage output (A0) for real-time concentration measurement
- Digital output (D0) with adjustable threshold
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ2-Flammable Gas and Smoke Sensor Module
₹ 160.00Original price was: ₹ 160.00.₹ 142.00Current price is: ₹ 142.00.Read moreQuick Review:
- Operating Voltage: 5V DC
- Sensitivity Range: 300 ppm to 10,000 ppm
- Operating Temperature: -20°C to 50°C
- Output Type: Analog voltage output (A0), Digital output with adjustable threshold (D0)
- Dimensions: Compact and easily mountable on a PCB
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ6-Gas (LPG/butane) Leakage Sensor Module
₹ 160.00Original price was: ₹ 160.00.₹ 146.00Current price is: ₹ 146.00.Read moreQuick Review:
- Operating Voltage: Typically 5V DC.
- Sensor Resistance: The resistance varies based on the gas concentration; typically between 10kΩ and 30kΩ.
- Response Time: Quick response time, typically a few seconds.
- Preheating Time: 1-2 minutes for the sensor to stabilize before it gives accurate readings.
- Sensitivity Range: Detects gas concentrations from 200 to 10,000 ppm.
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
-
MQ5-LPG Natural Gas Sensor Module
₹ 145.00Original price was: ₹ 145.00.₹ 134.00Current price is: ₹ 134.00.Read moreQuick Review:
- Operating Voltage: 5V DC
- Heater Resistance: Typically 33Ω
- Sensor Resistance: Varies with the concentration of gas, typically between 10kΩ and 30kΩ
- Response Time: Fast response time, typically a few seconds to detect changes in gas concentration.
- Preheating Time: Requires about 1-2 minutes to stabilize for accurate readings.
For all Bulk & B2B Product Enquiries
Kindly share your requirements at Contact Us.
Availability:Â
Vivaan (verified owner) –
Very well worth the money.
Ishaan (verified owner) –
Very fast delivery.
Aditya (verified owner) –
The product is firmly packed.
Rahul (verified owner) –
Very well worth the money.
Armaan (verified owner) –
Good service.
Arjun (verified owner) –
Very fast delivery.
Veer (verified owner) –
Very fast delivery.
Kabir (verified owner) –
Very well worth the money.
Advik (verified owner) –
Very fast delivery.
Kabir (verified owner) –
Good service.
Alok (verified owner) –
Good service.
Shaurya (verified owner) –
Good service.
Siddharth (verified owner) –
Very well worth the money.
Rehan (verified owner) –
The product is firmly packed.
Armaan (verified owner) –
The product is firmly packed.
Mohammad (verified owner) –
Very well worth the money.
Aadarsh (verified owner) –
Very fast delivery.
Riaan (verified owner) –
Very fast delivery.