MQ-D3 Alcohol Sensor
MQ-D3 Alcohol Sensor has high sensitity to Alcohol, and has good resistance to disturb of gasoline, smoke and vapor. The sensor could be used to detect alcohol with different concentration, it is with low cost and suitable for different applications, such as portable alcohol detectors and automotive ignition systems, etc.
Key parameters:
Model No. | MQ-D3 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Metal | ||
Detection Gas | Alcohol | ||
Concentration | 20-500ppm alcohol | ||
Circuit | Loop Voltage | Vc | ≤6V DC |
Heater Voltage | VH | 0.9V±0.1V AC or DC | |
Load Resistance | RL | Adjustable | |
Character | Heater Resistance | RH | 4.0Ω±0.5Ω（Room Tem.） |
Heater consumption | PH | ≤140mW | |
Zero | V0 | 0.01-0.45V | |
Sensitivity | S | 1.0-2.5V((125ppm Alcohol) | |
Slope | α | ≤0.6(R300ppm/R50ppm Alcohol) | |
Condition | Tem. , Humidity | 20℃±2℃;65%±5%RH | |
Standard test circuit | Vc: 3.0V±0.1V； VH : 0.9V±0.1V | ||
Preheat time | Over 48 hours | ||
Configuration (Unit:mm, tolerance:±0.2mm) :
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