MH-Z19C carbon dioxide gas sensor
The MH-Z19C carbon dioxide gas sensor (hereinafter referred to as the sensor) is a general-purpose intelligent small sensor, which uses the principle of non-dispersive infrared (NDIR) to detect CO2 in the air, with good selectivity, no oxygen dependence, long life, etc. Features; built-in temperature compensation; at the same time with serial output, analog output, PWM output, easy to use. The sensor is a high-performance sensor made by closely combining mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design.
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Sensor Features
The air chamber is gold-plated, waterproof and anti-corrosion
High sensitivity, low power consumption
excellent stability
Temperature Compensated, Excellent Linear Output
Provide serial port (UART), analog (DAC), PWM waveform and other output methods
long lasting
Anti-water vapor interference, no poisoning
main application
HVAC equipment, air quality monitoring equipment, fresh air system, air purification equipment, smart home, school
Technical indicators
|
Product number |
MH-Z19C |
|
detect gas |
carbon dioxide |
|
Supply voltage |
DC(5.0±0.1)V |
|
Average current |
<40mA (@5V power supply) |
|
peak current |
125 mA (@5V power supply) |
|
interface level |
3.3V (5V compatible) |
|
Measuring range |
Optional in the range of 400~5000ppm (expandable to 10000ppm) |
|
output signal |
Serial port (UART) (TTL level 3.3V) |
|
PWM |
|
|
Analog output (DAC) (default 0.4~2V) (0~3V range configurable) |
|
|
Preheat time |
2.5min |
|
Response time |
T90 < 120s |
|
Operating temperature |
-10℃～50℃ |
|
Storage temperature |
-20℃～60℃ |
|
Working humidity |
0～95%RH(no condensation) |
|
weight |
5 g |
|
life |
>5year |
Note: Product parameters are subject to change without prior notice
production workshop
patent certificate
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