MQ-2 Smoke Sensor Module

• Power Supply: 5 V
• Current consumption: 150 mA
• Measuring range up to 10,000 ppm
• Operating temperature: -20 to 50 °C
• Analog and digital output
• Resistor which pulls the sensor’s output to ground with a value of 1 kΩ
• Pins: goldpin connectors, 2.54 mm pitch
• Board sizes: 36 x 20 x 23 mm
• It has mounting holes with diameter: 3.2 mm

Applications:

• Domestic Gas Leakage Detector: Monitors household areas for gas leaks, enhancing safety.
• Industrial Gas Detection: Ensures safety in industrial environments by detecting combustible gases.​
• Portable Gas Detectors: Used in handheld devices for field gas detection.

The digital output D0:

With the help of placed on the reverse side of the board, potentiometer, set is the threshold, exceeding of which, causes the output D0 changing from a high to a low status. The pin D0 can be linked directly with a microcontroller or commissioning set, including Arduino, or for example, a module with a buzzer, which will signal a too low or too high level of unwanted gases in the air.

Analog output A0:

The sensor has an analog output A0, which must be connected to the pin of the converter A/D (analog input in Arduino). This will allow you to measure the proportional voltage signal and more accurately determine the concentration.

Package Include:

• 1 X MQ-2 Smoke Sensor Module.