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Enclosure for the Raspberry Pi ZERO W
Enclosure for the Raspberry Pi ZERO W
01.Infrared LED Tx (IR LED)
02.LM35dz "Temperature Sensor"
03.Ultrasonic Sensor & Distance Measurement Module HC-SR04
04.Photo Diode PT3401B-M-3B (Receiver)
05.Infrared Receiver Module "KSM803"
06.Photo Diode PT3401B-B (Transmitter)
07.Strong Small Disc Round Cylinder Magnet 17x15 mm
08.PT204-6C "Photo Transistor"
09.PIR Motion Sensor Module
10.DS18B20 "Digital Temperature Sensor"
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MQ-3 Alcohol Ethanol Detection Sensor Module  65.00L.E. 
For more information, please visit this Website



MQ-3 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). When the sensor is present in the environment in which the alcohol vapor , the sensor's conductivity increases with the concentration of alcohol gas in the air increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding output signal. MQ-3 gas sensor with high sensitivity to alcohol , gasoline can resist , smoke , water vapor interference.

This sensor can detect various concentrations of alcohol atmosphere , is a low-cost sensors for a variety of applications.

  • With power indication and TTL signal output indication
  • With Digital DO open signal (TTL) output and AO analog output.
  • Electrical properties: Input voltage: DC 5V; Power consumption (current): 150mA.
  • DO output: TTL digital quantity 0 and 1 (0.1 and 5V).
  • AO output: 0.1~0.3V.
  • Maximum concentration voltage: About 4V.
  • Preheat time: 20s


  • Alcohol (ethanol) detection
  • Car alcohol alarm
  • Breathalyzer
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This product was added to our catalog on 08/24/2017.
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Modern Digital Multimeter UT61E - True RMS
Modern Digital Multimeter UT61E - True RMS
 1,050.00L.E. 975.00L.E. 
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