Mikroe OZONE 2 CLICK (Mikroe-2767) – MQ131 Ozone (O₃) Gas Sensor Board, Analog & SPI, mikroBUS
The Mikroe OZONE 2 CLICK is a mikroBUS-compatible gas sensor board featuring the MQ131 sensor for detecting ozone (O₃) concentrations from 10 to 1000 ppm. It provides dual analog and SPI output interfaces and operates from a 3.3V or 5V supply, making it suitable for integration with development platforms like Arduino, Raspberry Pi, and STM32.
Features
- Equipped with MQ131 ozone (O₃) gas sensor with a 10–1000 ppm detection range.
- Dual output interfaces: direct analog signal and 22-bit SPI ADC (MCP3551) for high-resolution readings.
- Standard mikroBUS form factor (57.15 x 25.4 mm) for plug-and-play compatibility with hundreds of host boards.
- Operates from a 3.3V or 5V DC supply, supporting flexible system integration.
- Includes onboard potentiometer for sensor calibration and sensitivity adjustment.
Out of stock
The OZONE 2 CLICK utilizes a heated metal oxide semiconductor (MOS) MQ131 sensor element. The sensor’s conductivity increases proportionally with ozone concentration, allowing the board to translate gas presence into a measurable electrical signal. A protective stainless steel mesh shields the sensing element from particulates and mechanical damage, though prolonged exposure to excessive moisture or corrosive gases should be avoided.
The board integrates a high-precision 22-bit delta-sigma ADC (MCP3551) accessible via SPI, providing digital readings with excellent resolution for accurate ozone level monitoring. A direct analog output is also available for simpler analog-to-digital conversion. The sensor requires a 48-hour preheating period at 5V to stabilize and achieve its specified performance and sensitivity ratio (R0/Rs ≥ 3 in 50 ppm O3).
Additional Information
| Weight | 0.06 kg |
|---|---|
| Dimensions | 4 × 6 × 2 cm |
