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MH-Z19C-DZ 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.
400~2000/5000/10000ppm CO2
UART, PWM
HVAC, ventilation system, air purifier, air monitor
MH-Z19C-DZ 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.
| Model No. | MH-Z19C-DZ |
| Detection Gas | CO2 |
| Working voltage | DC(5.0±0.1)V |
| Average current | < 40mA (@5V power supply) |
| Peak current | 125mA (@5V power supply) |
| Interface level | 3.3 V (Compatible with 5V) |
| Detection Range | 400~5000ppm(optional)(400~1000 0ppm range could be customized) |
| Output signal | Serial Port (UART) (TTL level 3.3V) |
| PWM | |
| Analog output(DAC) (default 0.4~2V) (0~3V range could be customized) | |
| Preheat time | 2.5min |
| Response Time | T90 < 120s |
| Working temperature | -10℃～50℃ |
| Storage temperature | -20℃～60℃ |
| Working humidity | 0 ~ 95% RH (No condensation) |
| Weight | 5 g |
| Lifespan | > 5 years |
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