MH-Z19B NDIR high-resolution CO2 sensor on UART PWM

In response to the growing demand for air quality monitoring, we offer the advanced CO2 MH-Z19B sensor module. This high-resolution sensor allows precise and stable measurement of carbon dioxide concentration in the air, using the proven NDIR method (non-dispersive infrared sensor). This method ensures the reliability and accuracy of the measurements.

The MH-Z19B sensor features a number of advantages that make it an extremely effective tool in environmental monitoring:

• High sensitivity and resolution enable accurate readings,
• Low power consumption increases its energy efficiency,
• Three measurement reading modes adapt the device to different user needs,
• Temperature compensation and perfect linearity of measurement ensure consistent precision,
• Long life guarantees reliability for years.

Ideal for everything from domestic air quality monitors to industrial applications, the MH-Z19B sensor is a key component in modern environmental management.

Specification:

• Model: MH-Z19B
• Detects: carbon dioxide CO2
• Supply voltage: 4.5 - 5.5 V
• Average current consumption: < 60 mA
• Maximum instantaneous current: 150 mA
• Logic voltage: 3.3V (5V compatible)
• Measuring range: 0 - 5000 ppm
• Measurement error: +/- 3%
• Temperature compensation
• Measurement reading via: UART, PWM, DAC (default 0.4-2V)
• Warm-up time: 3 min
• Response time: T90 < 120s
• Operating temperature: 0°C to 50°C
• Operating humidity: 0 to 90%
• Dimensions: 33mm x 20mm x 9mm
• Weight: 5g
• Service life: > 5 years