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MQ-2 Combustible Gas Sensor Module – LPG Hydrogen Detection

MQ-2 Combustible Gas Sensor Module – LPG Hydrogen Detection

QAR 19.00/ unit

Arrives by 17 October · Standard · Delivery from QAR 50

Express: 15 October · Economy: 21 October

1

Description

The MQ-2 Combustible Gas Sensor Module is designed for detecting flammable gases such as LPG, propane, hydrogen, methane, alcohol, and carbon monoxide. It features both analog and digital outputs, allowing precise gas concentration measurement or simple threshold-based detection. Operating at 5V DC with an onboard comparator and adjustable potentiometer, it ensures stable performance and easy integration with Arduino and other microcontrollers. Suitable for gas leakage alarms, air quality monitoring, and safety systems in laboratories, hospitals, and industrial environments. Features • MQ-2 semiconductor gas sensing element • Detects LPG, propane, hydrogen, methane, alcohol, CO • Dual output: Analog (0–5V) and Digital (TTL) • Adjustable sensitivity via onboard potentiometer • Operating voltage 5V DC • Built-in power and status indicator LEDs • Fast response and recovery time • Preheat time approximately 20 seconds • Onboard LM393 comparator circuit • Compatible with Arduino and 5V microcontrollers • Suitable for gas leak alarm systems • Applicable for air quality monitoring Tutorials • How MQ2 Gas Sensor works ? | 3D Animated 🔥 • Smoke and Gas Sensor MQ2: Everything You Need to Know

Specifications

Operating Voltage5V DC
Operating Current150 mA (heating)
Sensor TypeSemiconductor (SnO2)
Gas DetectionLPG, Propane, Hydrogen, Methane, Alcohol, CO
Detection Range300–10000 ppm (combustible gases)
Analog Output Voltage0–5V
Digital Output Voltage0V or 5V TTL
Comparator ICLM393
Preheat Time≥20 s
Response Time<10 s
Operating Temperature-10°C to 50°C
Operating Humidity5%–95% RH (non-condensing)
Module Dimensions32 × 20 × 22 mm
Category
Sensors