Waveshare MQ-3 Gas Sensor Overview 1. Sensitive for alcohol, ethanol 2. Output voltage boosts along with the concentration of the measured gases increases 3. Fast response and recovery 4. Adjustable sensitivity 5. Signal output indicator Specifications 1. Power: 2.5V ~ 5.0V 2. Dimension: 40.0mm * 21.0mm 3. Mounting holes size: 2.0mm Applications 1. Car alcohol alarm 2. Breathalyser How to Use In the case of working with a MCU: 1. VCC: 2.5V ~ 5.0V 2. GND: Power supply ground 3. AOUT: MCU.IO (analog output) 4. DOUT: MCU.IO (digital output) Package Contents 1. MQ-3 Gas Sensor x1 2. 4-pin custom connector jumper wire x1
Specifications
Key Features
Waveshare MQ-3 Gas Sensor
Waveshare MQ-3 Gas Sensor
Waveshare MQ-3 Gas Sensor
Waveshare MQ-3 Gas Sensor
Waveshare MQ-3 Gas Sensor
What’s in the box
1 x package
Specifications
SKU: GE779EA3SK8RCNAFAMZ
Model: B18921DAM=ZY15927471
Production Country: China
Size (L x W x H cm): 5 x 4 x 1cm
Weight (kg): 0.06
Color: Multicolor
Main Material: Multi-Material
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