ShenzhenYijiajie Electronic Co., Ltd.
                                                                                                           
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MH-Z19D CO2 Gas Sensor 400-10000ppm Range with UART/PWM Output for Air Quality Monitoring

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: 3 days
Brand: YJJ
Product Description
MH-Z19D CO2 Gas Sensor

A high-performance carbon dioxide sensor designed for air quality monitoring equipment, featuring non-dispersive infrared (NDIR) technology with excellent selectivity and long-term reliability.

Key Features
  • Non-dispersive infrared (NDIR) detection principle for accurate CO2 measurement
  • Excellent selectivity with no oxygen dependence
  • Built-in temperature compensation for stable performance
  • Dual output options: serial port (UART) and PWM
  • Long operational lifespan exceeding 5 years
  • Compact design weighing only 5 grams
  • Fast preheating time of just 1 minute
Technical Specifications
Parameter Specification
Detection Gas Carbon Dioxide (CO2)
Supply Voltage DC 5.0±0.1V
Average Current <40mA (@5V power supply)
Measurement Range 400~10000ppm (configurable)
Output Signals Serial port (UART, TTL level 3.3V), PWM
Response Time T90 < 120 seconds
Operating Temperature 0℃ ~ 50℃
Operating Humidity 0 ~ 95%RH (non-condensing)
Weight 5 grams
Product Image
MH-Z19D CO2 Gas Sensor unit showing compact design and connection interfaces
Application Areas

Ideal for integration into air quality monitoring systems, HVAC controls, indoor environmental monitoring devices, and industrial gas detection equipment requiring reliable CO2 measurement capabilities.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ShenzhenYijiajie Electronic Co., Ltd.
Location Room 3306AB 33rd Floor, SEG Plaza,Huaqiang North Road, Futian District, Shenzhen Guangdong Province 518028
Contact Person Xu

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