CO2 sensor module – MH-Z19C
Integrate the MH-Z19C sensor into your projects. Lets you monitor CO2 concentration in indoor environments simply and efficiently.
SKU 2846-CO2SENSMHZ19CEAN 8219671120999Item type: AssembledSensors, Sensors
Description
MH-Z19C carbon dioxide sensor. Uses the non-dispersive infrared principle (NDIR) to detect the presence of CO2 in the air. Features temperature compensation, UART output (3.3 V TTL level) and PWM, high sensitivity, excellent stability and low consumption. Applications: refrigeration equipment, air quality monitoring equipment, air purifiers, demand-controlled ventilation (DCV), etc.
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| Modules compared | ||||
| 1. MH-Z19C has one window to receive the CO2 gas, while MH-Z19B has two. 2. The sampling period for MH-Z19C is 1 second, while for MH-Z19B it is 5 seconds. 3. The power supply for MH-Z19C is (5+/-0.1) V, while for MH-Z19B it is 4.5~5.5 V. 4. MH-Z19C has an analogue output, while MH-Z19B does not. 5. The warm-up time for MH-Z19C is 2.5 minutes, while for MH-Z19B it is 3 minutes. 6. The default self-calibration cycle for MH-Z19C is 1 day, but a 7-day cycle can be chosen if needed. MH-Z19B’s is 1 day. Overall, MH-Z19C offers greater consistency and better performance than MH-Z19B and can directly replace MH-Z19B. They share the same dimensions. |
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| Documentation and useful links | ||||
Technical details
| Sensor | MH-Z19C |
|---|---|
| CO2 detection | from 400 to 5,000 ppm (parts per million) |
| Warm-up time | 2.5 minutes |
| Response time | T90<120s |
| Output | UART (3.3 V TTL level), PWM |
| Interface level | 3.3 V (compatible with 5 V) |
| Power supply | 5 VDC (+/- 0.1V) |
| Average current | <40mA (@5V supply) |
| Peak current | 125 mA (@5V supply) |
| Operating temperature | from -10°C to +50°C |
| Humidity | from 0 to 95% RH (non-condensing) |
| Dimensions (mm) | 26.5x19.5x8 |
| Weight | 5 grams |
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