Winsen MH-Z19B NDIR CO2 sensor for indoor air quality monitoring

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.

Applications:

1. HVAC refrigeration
2. Air cleaner device
3. Indoor air quality monitoring
4. Smart home
5. Ventilation system
6. School

Features:

1. Chamber is gold plated, water-proof and anti-corrosion
2. High sensitivity, low power consumption
3. Good stability
4. Temperature compensation, excellent linear output
5. Multiple output modes: UART, PWM
6. Long lifespan
7. Anti-water vapor interference, anti-poisoning

Specifications: 

1. Model No: MH-Z19B
2. Detection Gas: CO2
3. Working voltage: 4.5 ~ 5.5 V DC
4. Average current: < 20mA (@5V power supply)
5. Peak current: 150mA (@5V power supply)
6. Interface level: 3.3 V (Compatible with 5V)
7. Detection Range: 0~2000/5000/10000ppm(optional)
8. Output signal: Serial Port (UART) (TTL level 3.3V), PWM
9. Preheat time: 3 min
10. Response Time: T90 < 120 s
11. Working temperature: -10 ~ 50 ℃
12. Working humidity: 0 ~ 95% RH (No condensation)
13. Weight: 5 g
14. Lifespan: > 5 years

Packages Includes: 

1 x Winsen MH-Z19B NDIR CO2