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Small rectangular green circuit board with sensor module and Grove connector, 40mm by 20mm by 15mm

Seeed Studio

Seeed Studio Grove Air Quality Sensor v1.3

SKU CH-V3B9-7J6TT

Detects carbon monoxide, alcohol, acetone, thinner and formaldehyde using a Winsen MP503 sensor on a 40mm x 20mm x 15mm Grove module compatible with 5V and 3.3V systems

  • TypeSensors
  • Detects CO, alcohol, acetone, thinner and formaldehyde for broad air-quality awareness
  • High sensitivity via conductivity change gives qualitative gas-concentration feedback
  • Runs on 5 V or 3.3 V for direct Arduino and Raspberry Pi connection
  • Low power draw and long life support continuous monitoring in homes or offices
  • Compact 40 x 20 x 15 mm module weighs 11 g for easy integration

Air Quality Sensor v1.3

The Grove Air Quality Sensor v1.3 detects carbon monoxide, alcohol, acetone, thinner and formaldehyde in indoor environments. It connects to Arduino or Raspberry Pi boards using 5 V or 3.3 V logic. The module suits hobbyists and engineers building air-quality monitors or automatic ventilation triggers.

Grove cable included

A 4-pin Grove cable ships in the box so the sensor plugs directly into a Grove base shield without soldering. The Winsen MP503 sensing element changes conductivity with gas concentration, and the board draws minimal current for long-term deployments. Wiki tutorials and community projects help beginners start quickly.

Qualitative detection only

The sensor provides qualitative results across a wide scope of target gases rather than calibrated ppm values. Extended exposure to highly polluted air can weaken sensitivity significantly. Buyers needing precise quantitative measurements or certified safety compliance should choose a different instrument.

Highlights

  • Detects CO, alcohol, acetone, thinner and formaldehyde for broad air-quality awareness
  • High sensitivity via conductivity change gives qualitative gas-concentration feedback
  • Runs on 5 V or 3.3 V for direct Arduino and Raspberry Pi connection
  • Low power draw and long life support continuous monitoring in homes or offices
  • Compact 40 x 20 x 15 mm module weighs 11 g for easy integration

Specifications

TypeSensors

Questions about this item

Does the Winsen MP503 sensor need periodic replacement after long exposure to polluted air?

Prolonged exposure to highly polluted air can weaken the sensor sensitivity significantly, so replacement may be required to maintain detection accuracy.

What is the first limitation during continuous operation?

The sensor provides qualitative results across a wide gas range rather than precise quantitative measurements, which limits detailed concentration analysis.

How much power does the module draw when running all day?

The module operates on 5 V or 3.3 V with low power consumption, making it suitable for continuous use in battery-powered or mains-powered projects.

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