Gas

Gas sensors for detecting different gases

Flammable Gas & Smoke Sensor MQ-2

Code: SKU-002622

This semiconductor petrol sensor detects the presence of combustible petrol and smoke at concentrations from 300 to 10,000 ppm. The sensor’s simple analogue voltage interface requires only one analogue input pin from your microcontroller.

$6.95

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Ship 131 units in 7 days

Pololu Carrier for MQ Gas Sensors (Bare PCB Only)

Code: SKU-002621

This carrier board is designed to work with any of the MQ-series petrol sensors , simplifying the interface from 6 to 3 pins—ground, power and analogue voltage output—that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards.

$1.70

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Ship 132 units in 7 days

Alcohol Gas Sensor - MQ-3

Code: SKU-000267

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analogue resistive output based on alcohol concentration.

$8.95

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Ship 125 units in 7 days

Alcohol Gas Sensor MQ-3

Code: SKU-002705

This semiconductor petrol sensor detects the presence of alcohol petrol at concentrations from 0.04 mg/L to 4 mg/L, a range suitable for making a breathalyser. The sensor’s simple analogue voltage interface requires only one analogue input pin from your microcontroller.

$6.95

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Ship 285 units in 7 days

Carbon Monoxide & Flammable Gas Sensor MQ-9

Code: SKU-002625

This semiconductor petrol sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible petrol from 100 to 10,000 ppm. The sensor’s simple analogue voltage interface requires only one analogue input pin from your microcontroller.

$10.95

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Ship 86 units in 7 days

Carbon Monoxide Gas Sensor MQ-7

Code: SKU-002624

This semiconductor petrol sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor’s simple analogue voltage interface requires only one analogue input pin from your microcontroller.

$10.95

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Ship 246 units in 7 days

Carbon Monoxide Sensor - MQ-7

Code: SKU-000407

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-petrol concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivity and fast response time. The sensor’s output is an analogue resistance.

$11.95

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Ship 76 units in 7 days

Gas Sensor Breakout Board

Code: SKU-000272

Simple breakout board for the MQ - 3, MQ - 4 and MQ - 6 petrol sensors. All you need is VCC at 5V, GND, and a resistor to an ADC, that is it. Note: This is the PCB only. Sensors listed below. Dimensions: 16.8mm diameter Documents: Schematic Eagle Files Wiring Example

$1.20

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Ship 487 units in 7 days

Hydrogen Gas Sensor - MQ-8

Code: SKU-000826

This is a simple-to-use hydrogen petrol sensor, suitable for sensing hydrogen concentrations in the air. The MQ-8 can detect hydrogen petrol concentrations anywhere from 100-10000ppm. This sensor has a high sensitivity and fast response time. The sensor’s output is an analogue resistance.

$11.95

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Ship 58 units in 7 days

LPG / Isobutane / Propane Gas Sensor MQ-6

Code: SKU-002623

This semiconductor petrol sensor detects the presence of LPG, isobutane, and propane at concentrations from 300 to 10,000 ppm. The sensor’s simple analogue voltage interface requires only one analogue input pin from your microcontroller.

$7.95

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Ship 115 units in 7 days