MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module
MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module
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Looking to buy MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Specifications
| Sensor Type | MQ-2 Semiconductor Gas Sensor (SnO2-based) |
| Detectable Gases | H2, LPG, CH4, CO, Alcohol, Smoke, Propane |
| Operating Voltage | 5V DC |
| Output Type | Analog (A0) + Digital (D0) with onboard comparator |
| Detection Range | 300 - 10,000 ppm (varies by gas) |
| Preheat Time | ~20 seconds for stable readings |
| Sensitivity Adjustment | Onboard potentiometer for digital threshold tuning |
| Indicator LEDs | Power LED + Digital Output trigger LED |
| Interface | 4-pin header (VCC, GND, A0, D0) |
| Comparator IC | LM393 dual comparator |
| Board Dimensions | ~32 mm x 20 mm |
| Mounting | Screw-hole for secure installation |
| Compatibility | Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and all 5V-logic microcontrollers |
| Origin | Original/Authentic |
Why Choose MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module
- Multi-Gas Detection: A single module detects hydrogen, LPG, methane, carbon monoxide, smoke, propane, and alcohol vapors - versatile protection in one compact board
- Dual Output Modes: Analog output for precise concentration measurement and digital output for simple threshold-based triggering - use either or both simultaneously
- Adjustable Sensitivity: Onboard potentiometer lets you fine-tune the digital trigger threshold to match your specific environment and application requirements
- Plug-and-Play with Arduino & ESP32: Standard 4-pin header connects directly to any microcontroller - read analog values with analogRead() or monitor digital pin for instant alerts
Perfect For
- Smart Home Gas Leak Alarm: Build an LPG and natural gas leak detector with buzzer and SMS/push notification alerts using Arduino or ESP32 - protect your kitchen and home from dangerous leaks
- IoT Air Quality Monitor: Combine with ESP8266/ESP32 and cloud platforms like Blynk, ThingSpeak, or Home Assistant to remotely monitor gas levels and smoke from anywhere via your smartphone
- Fire & Smoke Detection System: Create an early-warning smoke detector that triggers alarms, activates exhaust fans, or sends emergency alerts before visible flames appear
- Industrial Safety Monitor: Deploy in workshops, factories, or warehouses to continuously monitor for combustible gas accumulation and trigger automated ventilation or shutdown systems
- Carbon Monoxide Detector: Build a CO safety monitor for enclosed spaces like garages, basements, or rooms with gas heaters - critical for preventing silent CO poisoning
- Robotics & Autonomous Systems: Integrate into mobile robots for hazardous environment exploration - detect gas leaks in mines, pipelines, or disaster zones
- Educational Lab Projects: Perfect for learning about analog-to-digital conversion, sensor calibration curves, threshold logic, and real-world embedded systems design
- Multi-Sensor Environmental Station: Combine with temperature (DHT22), humidity, dust (GP2Y1010AU0F), and air quality (MQ-135) sensors for a comprehensive environmental monitoring dashboard
MQ-2 Gas Sensor Module - Detect H2, LPG, CH4, CO, Smoke & Propane
Reliable multi-gas detection module from Tech Depot India, Bengaluru. The MQ-2 sensor module provides accurate, real-time detection of combustible gases and smoke - ideal for safety systems, IoT projects, and industrial monitoring.
How It Works
The MQ-2 module uses a tin dioxide (SnO2) semiconductor sensing element. In clean air, SnO2 has relatively high electrical resistance. When combustible gas molecules contact the heated sensing surface, they reduce the SnO2, lowering its resistance proportionally to gas concentration. The onboard circuit converts this resistance change into an analog voltage (0-5V on the A0
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your MQ-2 Gas Sensor Module For H2, LPG, CH4, CO, Smoke or Propane Detector Module today and start building your next project.
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