MQ-3 Alcohol, Gas Sensor MQ3

The MQ3 analog gas sensor is suitable for detecting alcohol; this sensor can be used in a breathalyzer.
It has high sensitivity to alcohol and low sensitivity to gasoline.
The sensitivity can be adjusted using a potentiometer.
- Size Guide
Size Guide
DRESSEST-SHIRTBOTTOMSDRESSESSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
T-SHIRTSize Chest Waist Hips 2XS 32 26 32 XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 All measurements are in INCHES
and may vary a half inch in either direction.
BOTTOMSSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
- Delivery & Return
Delivery
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1-3 working days
Home or collection point from £35.00 FREE
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Returns
Return
We will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).
Returns in store FREE
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
- Ask a Question
600,00 DA
MQ3 Gas Sensor
MQ-3 gas sensor for detecting alcohol and ethanol, with high sensitivity and fast response time.
Features:
-Power Supply: 5V
-Interface Type: Analog
-High sensitivity to alcohol and low sensitivity to benzine
-Fast response and high sensitivity
-Stable and durable
-Simple driver circuit
-Size: 36.4×26.6mm
Example of mounting the MQ-3 sensor with an Arduino board

| Brand | Arduino |
|---|
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