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.
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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
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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
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MH-Z19B NDIR Infrared CO2 Sensor Module Technical Parameters - Target Gas: CO2
- Working voltage: 4.5~ 5.5 V DC
- Average current: < 60mA(@5V)
- Peak current: 150mA (@5V)
- Interface level: 3.3 V(Compatible with 5V)
- Preheat time: 3 min
- Response Time: T90 < 120s
- Working temperature: 0 ~ 50°C
- Working humidity: 0~ 90% RH (No condensation)
