Category: Gas Sensors

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  Rated 4.67 out of 5

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  MQ135-Air Quality Gas Sensor Module

  ₹ 164.00 Original price was: ₹ 164.00.₹ 134.00Current price is: ₹ 134.00.

  Quick Review:

  • Operating Voltage: 5V DC (typical).
  • Sensor Resistance: The resistance of the sensor element changes based on the concentration of gases, usually measured in kilo-ohms.
  • Sensitivity Range: Detects gases in the range of 10-1000 ppm, depending on the specific gas.
  • Response Time: Fast response time (typically a few seconds), although it requires a 1-2 minute warm-up period for accurate readings.

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  Rated 4.50 out of 5

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  MQ3-Alcohol Detector Gas Sensor Module

  ₹ 149.00 Original price was: ₹ 149.00.₹ 144.00Current price is: ₹ 144.00.

  Quick Review:

  • Power Supply: 5V DC
  • Sensitivity Range: 25 ppm to 500 ppm (alcohol)
  • Preheat Time: Requires around 24 hours of preheating for the most accurate results.
  • Temperature Range: Operates between -10°C and 50°C
  • Output Types:
    • Analog voltage output (A0) for real-time concentration measurement
    • Digital output (D0) with adjustable threshold

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  Rated 4.44 out of 5

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  MQ7-Carbon Monoxide (CO) Gas Sensor Module

  ₹ 240.00 Original price was: ₹ 240.00.₹ 190.00Current price is: ₹ 190.00.

  Quick Review:

  • Operating Voltage: 5V DC (typically).
  • Resistance: The resistance of the sensor changes with the concentration of CO, typically measured in kilo-ohms.
  • Sensitivity Range: Can detect CO gas concentrations from 10 ppm to 1,000 ppm.
  • Response Time: Fast response, usually a few seconds, but the sensor requires 1-2 minutes of preheating for accurate readings.
  • Heater Resistance: Around 33Ω (varies slightly depending on manufacturer).

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