MH-Z19B Carbon dioxide detector

Product detailed description

MH-Z19B Carbon dioxide detector

Optical NDIR sensor. Its output is a digital value read via UART or PWM. Uses optical NDIR measurement and is sensitive to the purity of the measured gas

The sensor detects:

• Carbon dioxide_CO2 (carbon dioxide)

Specifications:

Measuring range: 0-0.5% vol
• Working voltage: 3.6-5.5VDC
• Working current: type 18mA
• Detection range: 0-5000ppm
• Detection accuracy: +- 50ppm
• Preheating time: 3 min
• Output (3.3V):
  • PWM
  • UART (9600, N, 8, 1)
• Response time: < 90s
• Working temperature: 0-50 °C
• Operating humidity: 0-95% Rh non-condensing
• Sensor lifetime: up to 5 years
• Size: 33x20x9mm
• Weight: 21 g

Included in delivery:

• 1pc MH-Z19B Carbon dioxide detector

Remark:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.

Sources:

• An example of working with a sensor
• Test code for Arduino