MQ-Q3 Alcohol sensor/ alcohol tester
MQ-Q3 gas 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 application.
Key parameters:
Model No. | MQ-Q3 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | Alcohol gas | ||
Concentration | 0.04-4mg/l alcohol | ||
Circuit | Loop Voltage | Vc | ≤24V DC |
Heater Voltage | VH | 5.0V±0.2V AC or DC | |
Load Resistance | RL | Adjustable | |
Character | Heater Resistance | RH | 31Ω±3Ω（Room Tem.） |
Heater consumption | PH | ≤900mW | |
Sensing Resistance | Rs | 2KΩ-20KΩ(in 0.4mg/l alcohol ) | |
Sensitivity | S | Rs(in air)/Rs(0.4mg/LAlcohol)≥5 | |
Slope | α | ≤0.6(R300ppm/R100ppm Alcohol) | |
Condition | Tem. , Humidity | 20℃±2℃;65%±5%RH | |
Standard test circuit | Vc: 5.0V±0.1V； VH : 5.0V±0.1V | ||
Preheat time | Over 48 hours | ||
Packing details:
4000pcs per carton, 17.85kg, measurement: 55cm*31cm*29.5cm
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