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MQ-3 Gas Sensor: Alcohol Detection Module
Overview
The MQ-3 Gas Sensor is a highly sensitive device designed for detecting alcohol and ethanol concentrations. This sensor is ideal for applications such as car alcohol alarms and breathalyzers, providing quick and reliable measurements.
Key Features
- High Sensitivity: Specifically tuned to detect alcohol and ethanol levels.
- Voltage Output: The output voltage increases proportionally with the concentration of the detected gases.
- Rapid Response Time: Ensures quick detection and recovery, making it suitable for real-time applications.
- Adjustable Sensitivity: Users can modify sensitivity settings according to their specific needs.
- Signal Output Indicator: Provides clear visual feedback on gas concentration levels.
Technical Specifications
- Power Supply Range: Operates between 2.5V to 5.0V.
- Dimensions: Compact size of 40mm x 21mm facilitates easy integration into various projects.
- Mounting Hole Size: Features mounting holes sized at 2.0mm for straightforward installation.
Applications
- Car Alcohol Alarm Systems
- Personal Breathalyzer Devices
Usage Instructions
For integration with a microcontroller (MCU):
- Connect VCC to a power supply within the range of 2.5V – 5V.
- Attach GND to the ground of your power supply system.
- Use AOUT for analog output connection to MCU.IO.
- Connect DOUT for digital output interfacing with MCU.IO.
Package Contents
- MQ-3 Gas Sensor x1
- Custom Connector Jumper Wire (4-pin) x1
This MQ-3 Gas Sensor module is an essential tool for anyone needing precise alcohol detection capabilities in automotive or personal safety applications, ensuring accurate readings that can help prevent dangerous situations related to impaired driving or excessive consumption.
Shipping
This product ships From China using different shipping carriers depending on the country you purchase from and will be delivered within 7–21 business days.
Payments
WE ACCEPT THE DIFFERENT PAYMENT METHODS ADVERTISED ON THE SITE, SUCH AS VISA, MASTERCARD, AMERICAN EXPRESS, DINERS CLUB CARDS AND MORE
Returns And Refunds
Sometimes we may require you to return the item to receive a refund in the uncommon situation it arrives defective. In other situations when it is proven that you did not receive the item due to circumstances such as shipping carrier issues, etc., you can request a full refund via your original payment method or alternatives like PayPal or cryptocurrencies by contacting us through WhatsApp, email, or our contact form. Read our full Returns and Refunds Policy here
How To Place An Order and common questions:
FAQ Page – Snug Wares
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