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Item specifics
  • is_customized: YES
  • Brand Name: CFsunbird
Product Description

MH-Z19 infrared CO2 sensor for CO2 monitor



It is widely used in the HVAC refrigeration and indoor air quality monitoring.

Note: Please let us know the measuring range you need in the Remarks.

                      If no remarks, we will ship 0~5000ppm by default.


Please check the optional measuring range:


Target Gas


Measuring Range



Carbon Dioxide



0~2000 ppm

± (50ppm+5% 

reading value)

Temperature compensation



0~5000 ppm


Temperature compensation




Main technical parameters

Product Model


Target Gas


Working voltage

3.6 ~ 5.5 V DC

Average current

< 18 mA

Interface level

3.3 V

Measuring range

0 ~ 0.5% VOL optional

Output signal




Preheat time

3 min

Reponse Time

T90 < 60 s

Working temperature

0 ~ 50°C

Working humidity

0 ~ 95% RH (No condensation)


33 mm×20 mm×9 mm (L×W×H)


21 g


> 5 years


Main functions and features

·         High sensitivity, high resolution

·         Low power consumption

·         Output modes: UART and PWM wave

·         Temperature compensation, excellent linear output

·         Good stability

·         Long lifespan

·         Anti-water vapor interference

·         No poisoning


More related CO2 sensor products:






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1.     Worldwide Shipping.(Except some countries and APO/FPO)
2.     Orders will be shipped within 1-5 business days after the payment verification.
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4.     Items will be marked as " Gift " in low value.
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1.     You have 7 days to contact us and 30 days to return it from the date it was received.
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3.     Both Replacement and Money Return are accept. Return shipping fee afford with buyer.
1.     12 months Manufacturer\'s limited warranty for defective items(excluding Man-made damage).Accessories come with a 3-month warranty.
2.     Defective item MUST BE reported and returned within the warranty period.
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Shipping Terms







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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.011kg (0.02lb.)
  • Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.011kg (0.02lb.)
  • Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
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