- Sensors[10]
- Alarm[10]
- Gas Analyzers[1]
- Contact Person : Ms. Cao Cathy
- Company Name : Zhengzhou Winsen Electronics Technology Co., Ltd.
- Tel : 86-371-67169097
- Fax : 86-371-60932988
- Address : Henan,Zhengzhou,NO.299 Jinsuo Road, National High-Tech Zone, Zhengzhou
- Country/Region : China
- Zip : 450001
Alcohol gas leak sensor
Alcohol gas leak sensor
1.MQ-3 gas sensor with good sensitivity to alcohol gas
2. Long life and low cost
3. Simple drive circuit
Application
1. Vehicle alcohol detector
2. Portable alcohol detector
Technical Data
Model No. | MQ-3 | ||
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/L Alcohol)≥5 | |
Slope | α | ≤0.6(R300ppm/R100ppm Alcohol) | |
Condition | Tem. Humidity | 20°C±2°C, 65%±5%RH | |
Standard test circuit | Vc:5.0V±0.1V, VH: 5.0V±0.1V | ||
Preheat time | Over 48 hours | ||
Alcohol gas leak sensor
