Description
The Grove - Gas Sensor(MQ3) module is useful for gas leakage detection (in home and industry). It is suitable for detecting Alcohol, Benzine, CH4, Hexane, LPG, CO. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by using the potentiometer. This module is made using Alcohol Gas Sensor MQ3. It is a low cost semiconductor sensor which can detect the presence of alcohol gases at concentrations from 0.05 mg/L to 10 mg/L. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of alcohol gases increases. It has high sensitivity to alcohol and has a good resistance to disturbances due to smoke, vapor and gasoline. This module provides both digital and analog outputs. MQ3 alcohol sensor module can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc
Note:
Specifications:
| Item | Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| VCC | Working Voltage | 4.9 | 5 | 5.1 | V |
| PH | Heating consumption | 0.5 | - | 750 | mW |
| RL | Load resistance | adjustable | |||
| RH | Heater resistance | - | 33 | - | Ω |
| Rs | Sensing Resistance | 1 | - | 8 | MΩ |
| Scope | Detecting Concentration | 0.05 | - | 10 | mg/L |
Product details:
| Concentration | 0.05 mg/L ~ 10 mg/L Alcohol |
| Operating Voltage | 5V +-0.1 |
| Current Consumption | 150mA |
| Operation Temperature | -10degC ~ 70degC |
Package Included:
1 x MQ3 ethanol alcohol gas sensor sense Alcohol, Benzine, CH4, Hexane, LPG, CO