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MQ-3 Alcohol Ethanol Detection Sensor

MQ-3 Alcohol Ethanol Detection Sensor
MQ-3 Alcohol Ethanol Detection Sensor
  • Availability: In Stock
  • Weight: 0.01kg
  • Package Size: 6.00cm x 3.50cm x 1.50cm
  • SKU: ELE-SEN-021
$2.00
Ex Tax: $2.00
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Features:
The MQ-3 is a semiconductor sensor for detecting ethanol vapor in the air. It offers high sensitivity, quick response, and stable output. Its resistance to interference from smoke and gasoline makes it ideal for alcohol testers and breathalyzer applications. It provides both analog and digital outputs, with simple 4-pin connectivity.

Specifications:
  • Input voltage: DC 5V
  • Power consumption: 150mA
  • DO output: TTL digital 1 and 0 (0.1V and 5V)
  • AO output: 0.1V to 0.3V (clean air), up to ~4V (high concentration)
  • Detection range: 10 to 1000 ppm alcohol
  • Sensor type: Semiconductor
  • Detection gas: Alcohol vapor (ethanol)
  • Heater voltage (Vh): 5.0V +-0.2V
  • Load resistance (RL): Adjustable
  • Preheat time: Over 48 hours

We offer fast worldwide shipping with reliable service. Orders are processed within 12h and delivered in:

  • Lebanon:
    1–3 working days via Aramex ($4 fee, extra for machines).

  • International:
    3–10 working days (fees depend on weight/volume).

You'll receive an email with tracking details once your order ships. Import taxes may apply and are the customer's responsibility.

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