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MH-Z14 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 sensor can do temperature compensation; and it has digital output and analog voltage output. This infrared gas sensor 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
agriculture, HVAC, ventilation system, air purifier, air monitor
MH-Z14 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 sensor can do temperature compensation; and it has digital output and analog voltage output. This infrared gas sensor is developed by the tight integration of mature infrared absorbing gas detection technology, Precision optical circuit design and superior circuit design.
| Model No. | MH-Z14B |
| Detection Gas | CO2 |
| Working voltage | DC (5.0±0.1) V |
| Average current | < 60 mA(@5V power supply) |
| Peak current | 150 mA（@5V power supply） |
| Interface level | 3.3 V (Compatible with 5V) |
| Measuring range | 0~10000ppm (max 50000ppm can be extended) |
| Output signal | UART (TTL 3.3V) |
| PWM | |
| Preheat time | 10S |
| Response Time | T90 < 90s |
| Working temperature | -10℃ ~ 50℃ |
| Working humidity | 0~95%RH |
| Storage temperature | -20℃ ~ 60℃ |
| Weight | <15 g |
| Lifespan | >10 years |
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