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Gas Sensor

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  • Alcohol Sensor MQ303A
    MQ303A is a semiconductor sensor for Alcohol detection. It has very good sensitivity and fast response to alcohol, suitable for portable alcohol detector.    Features High sensitivity Fast response and resume long life and low cost Mini size   ..
    S$10.50
  • Analog Alcohol Sensor(MQ3)
    INTRODUCTION The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser.It has a high sensitivity to alcohol and small sensitivity to Benzine. The sensitivity can be adjusted by the potentiometer.   Notice:The new version of analog sensor port pin mapping has been changed as the following two features.Please check the tips for changing sensor cable pin mapping while using the I/O Expansion shield. We will continue to update. For the inconvenience caused, please understand.       SPECIFICATION Power supply: 5V Interface type: Analog High se..
    S$12.00
  • Analog Carbon Monoxide Sensor (MQ7)
    INTRODUCTION The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for sensing CO concentrations in the air. It can detect CO-gas concentrations anywhere from 20 to 2000ppm. The sensitivity can be adjusted by the potentiometer.    Notice:The new version of analog sensor port pin mapping has been changed as the following two features.Please check the tips for changing sensor cable pin mapping while using the I/O Expansion shield. We will continue to update. For the inconvenience caused, please understand.   SPECIFICATION Power supply needs: 5V Interface type: Analog Pin De..
    S$17.00
  • Analog CO/Combustible Gas Sensor(MQ9)
    INTRODUCTION The MQ-9 Analog Gas Sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor can be used to detect different gases containing CO and combustible gases, it is low cost and suitable for a variety of applications.  The core sensing material of MQ-9 gas sensor is SnO2, which has a lower conductivity in clean air. It makes detection by cycling high and low temperature, and detects CO when low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When temperature rises (heated by 5.0V), it detects Methane, Propane, combustible gas,etc  and cleans the other gases adsorbed under low temperature.    Notice:The new version of anal..
    S$21.90
  • Analog Gas Sensor(MQ2)
    INTRODUCTION   The analog gas sensor - MQ2 is used in gas leakage detecting equipments in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.It has a high sensitivity and fast response time.And the sensitivity can be adjusted by the potentiometer.   Notice:The new version of analog sensor port pin mapping has been changed as the following two features.Please check the tips for changing sensor cable pin mapping while using the I/O Expansion shield. We will continue to update. For the inconvenience caused, please understand.     Improvement List ..
    S$12.00
  • Analog Gas Sensor(MQ4)
    INTRODUCTION The MQ4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is suitable for detecting CH4,Natural gas, LNG, avoid exposure to alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer.   Notice:The new version of analog sensor port pin mapping has been changed as the following two features.Please check the tips for changing sensor cable pin mapping while using the I/O Expansion shield. We will continue to update. For the inconvenience caused, please understand.     Improvement List Standard assembling structure (Times-of-5mm Center d..
    S$12.00
  • Analog Gas Sensor(MQ5)
    INTRODUCTION   The MQ5 is used in gas leakage detecting equipment in consumer and industry applications,this sensor is suitable for detecting LPG, natural gas, coal gas. Avoid the noise of alcohol, cooking fumes and cigarette smoke. The sensitivity can be adjusted by the potentiometer.         SPECIFICATION Power supply needs: 5V Interface type: Analog Pin Definition:  1-Output  2-GND  3-VCC High sensitivity to LPG, natural gas, town gas Small sensitivity to alcohol, smoke Fast response Stable and long life ..
    S$12.00
  • CO2 Sensor (Arduino compatible)
    INTRODUCTION "Greenhouse Effect" is melting the Earth ice core every minute and creating dangerous icebergs. By knowing the exact concentration of CO2, we can do somehing to reduce the CO2 and to protect our Earth. For that reason, this CO2 sensor is designed by DFRobot engineer. This is the first CO2 sensor in Arduino market.  The output voltage of the module falls as the concentration of the CO2 increases. The potentiometer onboard is designed to set the threshold of voltage. As long as the CO2 concentration is high enough (voltage is lower than threshold),  a digital signal (ON/OFF) will be released. It has MG-811 sensor module onboard which is highly sensitive to CO2 and less sensitive to alcohol and CO, low humidity..
    S$113.90
  • Grove - Air quality sensor
    The sensor is designed for indoor air quality testing. The main gas detected is carbon monoxide, alcohol, acetone, thinner, formaldehyde and other slightly toxic gases.    Features Low power consumption  High sensitivity  Tiny outline  Long life  Application Ideas Automatic air ventilation  Indoor air quality detector  For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.   ..
    S$19.00
  • Grove - Alcohol Sensor
    Alcohol sensor is semiconductor sensor for alcohol detection. It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector. Specifications Power requirements: 5 VDC @ ~120 mA (heater on) Detection Gas: Alcohol Concentration: 20-1000ppm Alcohol Interface: 1 TTL compatible input (SEL), 1 TTL compatible output (DAT) Dimension: 40×20×12mm Heater Voltage: 0.9V ± 0.1V AC or DC Heater Current: 120±20mA   Application Ideas Alcohol level over-limit alarm Stand-alone/background sensing device Environmental monitoring equipment &nbs..
    S$15.00