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The DFRobot Gravity Analog CO/Combustible Gas Sensor MQ9 by DFRobot is a value-for-money df robot modules designed for everyday users. It features Sensor Type: Semiconductor and Power Supply Voltage (V): 5.
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About This Product
The DFRobot Gravity Analog CO/Combustible Gas Sensor MQ9 by DFRobot is a value-for-money df robot modules designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Sensor Type: Semiconductor
- Power Supply Voltage (V): 5 — works with standard household power
- Interface: Analog — compatible with modern devices
- Loop Voltage(Vc): ≤10V — works with standard household power
- Heater Resistance: 31±3Ω
- Sensor Resistance: 2KΩ-20KΩ(in 100ppm CO)
- Humidity Range: 65%±5%RH — reliable connection even at a distance
- Dimensions (L x W x H) mm: 36.4x26.6
Why Buy from Elecvora?
Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.
This is an Arduino CO/Combustible Gas sensor. It uses MQ-9 to detect Carbon Monoxide. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for a variety of applications. The core sensing material of the MQ-9 gas sensor is SnO2, which has lower conductivity in clean air. It makes detection by cycling high and low temperatures and detects CO when low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When temperature rises (heated by 5.0V), it detects Methane, Propane, combustible gas, etc, and cleans the other gases adsorbed under low temperature.
- Domestic gas leakage detector
- Industrial gas detector
- Portable gas detector
Features:
- Good sensitivity to CO/Combustible gas
- High sensitivity to Methane, Propane and CO
- Long life and low cost
- Simple drive circuit
- Heater consumption: ≤350mW
- Sensing Resistance: 2KΩ-20KΩ(in 100ppm CO )
- Sensitivity: Rs(in air)/Rs(100ppm CO)≥5
- Concentration:10-1000ppm CO ,00-10000ppm combustible gas
- Good sensitivity to CO/Combustible gas
- Slope: α ≤0.6(R300ppm/R100ppm CO)
- Tem. Humidity: 20℃±2℃; 65%±5%RH
- High sensitivity to Methane, Propane and CO
Package Includes:
1 x DFRobot Gravity Analog CO/Combustible Gas Sensor (MQ9) For Arduino










