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MQ-7 CO Carbon Monoxide Gas Sensor

MQ-7 CO Carbon Monoxide Gas Sensor
MQ-7 CO Carbon Monoxide Gas Sensor
  • Availability: In Stock
  • Weight: 0.01kg
  • Package Size: 6.00cm x 3.50cm x 1.50cm
  • SKU: ELE-SEN-025
$2.00
Ex Tax: $2.00
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Features:
The MQ-7 is a semiconductor gas sensor designed for detecting carbon monoxide (CO) using a cyclical heating method. It alternates between 5.0V for sensor cleaning and 1.5V for CO sensing, enhancing selectivity. With high sensitivity, low cost, and straightforward circuitry, it's ideal for CO monitoring in residential, industrial, and portable devices.

Specifications:
  • Model: MQ-7
  • Sensor type: Semiconductor
  • Detection gas: Carbon monoxide (CO)
  • Concentration range: 10 to 10000 ppm
  • Loop voltage (Vc): <=10V DC
  • Heater voltage (Vh): High 5.0V +-0.2V, Low 1.5V +-0.1V (AC or DC)
  • Heater timing: High 60 +-1 sec, Low 90 +-1 sec
  • Load resistance (RL): Adjustable
  • Heater resistance (Rh): 31 ohm +-3 ohm at room temp
  • Heater power consumption: <=350 mW
  • Sensing resistance (Rs): 2k ohm to 20k ohm (in 100 ppm CO)
  • Sensitivity: Rs (in air) / Rs (in 100 ppm CO) >=5
  • Concentration slope (alpha): <=0.6 (R300ppm / R100ppm CO)
  • Operating temp: 20C +-2C
  • Humidity: 65% +-5% RH

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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