Product added to cart
MQ-3 Alcohol Gas Sensor Module
$0.9500
In stock
SKU
SEN-16-023
Volume discounts:
- +50 3 % $0.9200
- +100 5 % $0.9000
- +300 7 % $0.8800
- +500 9 % $0.8600
- +1000 11 % $0.8500
Product Variations:
Add an Accessory:
Ships in 2-3 business days, then:
Free delivery in 12-15 days by Tracked Economic Shipping on orders over $100.
Free delivery in 7-10 days by Express Shipping on orders over $300.
More shipping info
Shop with confidence Learn More
MQ-135 Gas Sensor and Air Quality Control Module Previous 
MQ-3 Alcohol Gas Sensor Module is an alcohol gas sensor module that detects the concentration of alcohol gas in the air and outputs an analog voltage reading. It is suitable for alcohol detection applications and breathalyzers. The sensor is based on SnO2 sensitive material and offers high sensitivity to alcohol gas. It also shows resistance to disturbance from gasoline, smoke, and vapour. MQ-3 Alcohol Gas Sensor Module is designed for stable sensing with a simple drive circuit.
The module supports operation across a defined temperature range and uses a 5V circuit voltage. It also includes heating-related electrical characteristics and a relative humidity limit. Use this product as an alcohol gas detection sensor module where analog output is required.
Features of MQ-3 Alcohol Gas Sensor Module
- Analog voltage output
- High sensitivity to alcohol gas
- Fast response
- Stable and long life
- Simple drive circuit
- Resistance to gasoline, smoke, and vapour
Specifications of MQ-3 Alcohol Gas Sensor Module
- Circuit Voltage: 5V
- Heating Resistance: 33 ± 5%
- Heating Consumption: About 350mW
- Relative Humidity: Less than 95%RH
- Concentration Sensing Range: 0.04 mg/L to 4 mg/L
- Operating Temperature: -10 to 50°C
- Current Consumption: Less than 150 mA at 5V
- Sensitive Material: SnO2
How to Use MQ-3 Alcohol Gas Sensor Module
- Connect the module to a 5V circuit.
- Read the analog voltage output from the sensor.
- Use the sensing signal for alcohol gas detection applications.
More Info
- Suitable for breathalyzers.
- Designed for alcohol gas concentration sensing.
| Interface Type | Analog |
|---|---|
| Operating Voltage (V) | 5V |
| Operating Current (mA) | < 150 |
| Operating Temp (°C) | -10 to 50°C |
| Output Type | Analog Voltage |
| Response Time | Fast response |
| Measurement Range | 0.04 mg/L to 4 mg/L |
| Environmental Parameter | Gas |
| Humidity Range | < 95%RH |
| Relay Output | No |
Write Your Own Review
Please complete your information below to login.
Sign In
Create New Account