Product Code: 200068462



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gas sensor,temperature and humidity sensor,UV Sensors,Ultrasonic Sensors,Fiber Optic Sensors,Liquid Level Sensors

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MH-Z19B Intelligent NDIR Infrared CO2 Sensor Carbon Dioxide Sensor Module
  • FOB Price
    US $ 20.00 - 100.00 / Piece(s)
  • Min. Order
    1 Piece(s)
  • Payment Terms
    T/T, Paypal
  • Port
  • Delivery Time
    15 days after payment
  • Place of Origin:
  • Brand Name:
  • Model Number:
  • Usage:
    Gas Sensor
  • Theory:
  • Output:
    Analog Sensor
  • Target Gas:
  • Working voltage:
    4.5~ 5.5 V DC
  • Response Time:
  • Working temp...:
    0 ~ 50°C
  • Working humi...:
    0~ 90% RH (No condens...
Product Description

MH-Z19B NDIR Infrared CO2 Sensor Module Principle Introduction
MH-Z19B NDIR infrared gas module is a common type, small size sensor, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

MH-Z19B NDIR Infrared CO2 Sensor Module Applications
MH-Z19B NDIR infrared gas module is widely used in
* HVAC refrigeration
* Indoor air quality monitoring.
* Smart home appliances
* School
* Air cleaner

MH-Z19B NDIR Infrared CO2 Sensor Module Technical parameters
* Main Functions and Features
* High sensitivity, high resolution
* Low power consumption
* Output modes: UART and PWM wave
* Temperament compensation, excellent linear output
* Good stability
* Long lifespan
* Anti-water vapor interference
* No poisoning

MH-Z19B NDIR Infrared CO2 Sensor Module Technical Parameters
Table 1 Main Technical Parameters

Product ModelMH-Z19B
Target GasCO2
Working voltage4.5~ 5.5 V DC
Average current< 60mA(@5V)
Peak current150mA (@5V)
Interface level3.3 V (Compatible with 5V)
Measuring rangerefer to Table 2
Output signalUART (TTL interface level 3.3V)
DAC (default 0.4-2V)
Preheat time3 min
Response TimeT90 < 120s
Working temperature0 ~ 50°C
Working humidity0~ 90% RH (No condensation)
Dimension33mm x 20mm x 9mm (L x W x H)
Lifespan> 5 years

Table 2 Measuring Range and Accuracy

Target Gas
Measuring Range
Carbon Dioxide
0~2000 ppm
± (50ppm+3% reading value)
Temperature compensation
0~5000 ppm
Temperature compensation