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MQ-9 Carbon Monoxide & Flammable Gas Sensor Module
$1.2900
In stock
SKU
SEN-16-015
Volume discounts:
- +50 5 % $1.2300
- +100 7 % $1.2000
- +300 9 % $1.1700
- +500 12 % $1.1400
- +1000 14 % $1.1100
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The MQ-9 Carbon Monoxide & Flammable Gas Sensor Module is a gas sensor module for detecting carbon monoxide (CO) and flammable gases. It provides an analog voltage signal that changes with gas concentration, and some versions also include a digital output. The module operates on 5V DC and uses a semiconductor-based gas sensing principle. It is designed for gas detection and safety monitoring applications. A preheat time is required before accurate readings are available.
Features of MQ-9 Carbon Monoxide & Flammable Gas Sensor Module
- Detects carbon monoxide and flammable gases
- Analog voltage output
- Digital output option
- Semiconductor-based sensing
- Preheat required
Specifications of MQ-9 Carbon Monoxide & Flammable Gas Sensor Module
- Type: Gas Sensor Module
- Gas Detected: Carbon Monoxide (CO) and flammable gases (e.g., methane, propane, hydrogen)
- Detectable Concentration: 10-1000ppm CO, 100-10000PPM gas
- Operating Voltage: 5V DC
- Power (current): 150mA
- Output Signal: Analog voltage signal (resistance variation based), Digital
- DO Output: TTL digital 0 and 1 (0.1 and 5V)
- AO Output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V
- Preheat Time: Typically a few minutes (for the sensor to stabilize)
- Warm-Up Period: Required before accurate gas detection
- Interface: Analog output, digital output (optional)
- Dimensions: 32x20x22 mm
How to Use MQ-9 Carbon Monoxide & Flammable Gas Sensor Module
- Power the module with 5V DC.
- Allow the sensor to preheat for a few minutes before taking readings.
More Info
- The analog output varies with detected gas concentration.
- The module can be interfaced with a microcontroller or ADC.
| Interface Type | Digital, Analog |
|---|---|
| Operating Voltage (V) | 5V |
| Operating Current (mA) | 150 |
| Dimensions (mm) | 32x20x22 mm |
| Output Type | Analog Voltage, Digital |
| Biometric Parameter | Gas Concentration |
| Application | gas leak detection, Safety monitoring systems |
| Target Gas | Carbon Monoxide (CO), Hydrogen, Methane, propane |
| Detection Range | 10-1000ppm for CO and 100-10000ppm for flammable gases |
| Sensor Type | MOX gas sensors |
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