Gravity: Analog Alcohol Sensor (MQ3) For Arduino

INTRODUCTION

This is an Arduino Alcohol sensor. It uses a MQ3 probe which can be used in a Breathalyser. It has a high sensitivity to alcohol and less sensitivity to Benzine.

The sensitivity is able to be adjusted by the potentiometer.  The output is proportional to the density of gas. You can use analog reading to read the data from this sensor. 
  

To ease the difficulty of using this sensor,  a Gravity Interface is adapted to allow plug&play.  The Arduino IO expansion shield is the best match for this senor connecting to your Arduino microcontrollers. 
  

SPECIFICATION

• Power supply: 5V


• Interface type: Analog


• High sensitivity to alcohol and small sensitivity to Benzine


• Fast response and High sensitivity


• Stable and long life


• Simple drive circuit


• Size: 36.4x26.6mm(1.43"x1.05")

 

FEATURES

• Standard assembling structure (Times-of-5mm Center distance between four 3mm(0.12") mounting holes)


• Easily recognitive interfaces of sensors ("A" for analog and "D" for digital)


• Icons to simplely illustrate sensor function 


• High quality connector & potentiometer


• Immersion gold surface

PACKING LIST

• Arduino Alcohol Sensor (MQ3) x1


• Analog Cable x1

 

DOCUMENTS

• Wiki Doc          


• Schematic


• MQ-3 datasheet

COUNTRIES WE SHIP TO

Trinidad & Tobago, Libya, Yemen, Monaco, Afghanistan, Philippines, Czech Republic, Liechtenstein, Hungary, Russian Federation, Dominican Republic, Gabon, Saudi Arabia, Zimbabwe, Seychelles, Turks & Caicos Islands, Cyprus, Kyrgyz Republic (Kyrgyzstan), Kenya, Qatar, Denmark, Guadeloupe, Sierra Leone, Peru, Cape Verde, El Salvador, Japan, Serbia, Azerbaijan, Guyana, Poland, Armenia, Puerto Rico, Iraq, Cuba, Barbados, Guinea, Benin, Somalia, Anguilla, Thailand, Mauritania, Reunion, Mongolia, Cambodia, Liberia, Panama, Antigua & Barbuda, Suriname, Italy, Ghana, Laos, Pacific Islands, Ethiopia, Ukraine, Samoa, Virgin Islands (US), Spain, Rwanda, Virgin Islands (UK), Mali, Norway, Andorra, Colombia, Israel and the Occupied Territories, Malawi, Gambia, Brazil, United States of America (USA), Saint Vincent and the Grenadines, Equatorial Guinea, Ivory Coast (Cote d'Ivoire), Costa Rica, France, Bulgaria, India, Sweden, Madagascar, United Arab Emirates, Bhutan, Tunisia, Bahrain, Mauritius, Solomon Islands, Grenada, South Africa, Mayotte, Djibouti, Morocco, Great Britain, Fiji, Cayman Islands, Angola, Central African Republic, Togo, Kazakhstan, Indonesia, Zambia, Turkey, Saint Kitts and Nevis, French Guiana, Honduras, Cameroon, Egypt, Montserrat, Uruguay, Argentina, Comoros, Greece, Bangladesh, Belgium, Jamaica, New Zealand, Macedonia, Republic of, Mozambique, Belarus, Brunei Darussalam, Montenegro, Lesotho, Bermuda, Sao Tome and Principe, China - Hong Kong / Macau, Timor Leste, Bosnia & Herzegovina, Paraguay, Belize, Syria, Kosovo, Jordan, Niger, Nicaragua, China, Haiti, Congo, Democratic Republic of (DRC), Algeria, Congo, Oman, Singapore, Eritrea, Chile, Slovenia, Malaysia, Mexico, Guatemala, Turkmenistan, Malta, Myanmar/Burma, Switzerland, Nigeria, Luxembourg, Burundi, Maldives, Ecuador, Lebanon, Croatia, Slovak Republic (Slovakia), Lithuania, Estonia, Iceland, Senegal, Australia, Netherlands, Venezuela, Korea, Democratic Republic of (North Korea), Finland, Uzbekistan, Tanzania, Bahamas, Botswana, Canada, Korea, Republic of (South Korea), South Sudan, Namibia, Uganda, Portugal, Vietnam, Guinea-Bissau, Bolivia, Germany, Georgia, Romania, Sri Lanka, Austria, Martinique, Papua New Guinea, Latvia, Tajikistan, Sudan, Saint Lucia, Swaziland, Nepal, Albania, Iran, Kuwait, Burkina Faso, Moldova, Republic of, Dominica, Chad, Pakistan

https://kdrobotkit.com/product/gravity-analog-alcohol-sensor-mq3-for-arduino/