Winsen MQ303A Alcohol Gas Sensor Module - Semiconductor Metal Encapsulation
The Winsen MQ303A is a semiconductor-type alcohol gas sensor module compatible with 5V systems, designed for detecting alcohol vapor concentrations between 20 and 500 ppm. It provides both analog and digital output signals for easy integration with microcontrollers like Arduino, Raspberry Pi, and industrial PLCs.
Features
- Semiconductor alcohol gas sensor with metal encapsulation for durability.
- Detects alcohol vapor concentrations from 20 to 500 ppm.
- Provides both analog and digital output signals for flexible interfacing.
- Operates with a heater voltage ≤6V DC and is compatible with 5V logic systems.
- High sensitivity ratio: R0/Rs ≥ 3 in 125ppm C2H5OH.
Out of stock
The MQ303A alcohol sensor utilizes a semiconductor sensing element whose conductivity increases in the presence of alcohol vapor. This change in conductivity is converted into a corresponding output signal via a simple external drive circuit, allowing for both threshold-based digital detection and proportional analog measurement.
Housed in a standard metal encapsulation, the sensor is designed for stable operation and long service life. It is calibrated for optimal performance at 20°C ±2°C and 55% ±5% relative humidity, making it suitable for integration into portable detectors and fixed monitoring systems requiring reliable alcohol vapor detection.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 2 × 2 × 2 cm |
