Frequently bought together:
Description
Features:
| CATEGORY | SPECIFICATIONS |
|---|---|
| Product Type | Carbon Dioxide (CO₂) Gas Sensor |
| Model | MH-Z19B |
| Detection Principle | Non-Dispersive Infrared (NDIR) |
| Gas Detected | Carbon Dioxide (CO₂) |
| Measurement Range | 0 – 10,000 ppm (selectable range) |
| Supply Voltage | 4.5 – 5.5 V DC |
| Average Current | < 20 mA (@ 5V) |
| Peak Current | 150 mA (@ 5V) |
| Interface Level | 3.3V logic (5V compatible) |
| Output Types | UART (serial), Analog (DAC), PWM |
| Warm-up Time | ~3 minutes |
| Response Time | T90 < 120 seconds |
| Operating Temperature | 0°C – 50°C |
| Operating Humidity | 0 – 95% RH (non-condensing) |
| Temperature Compensation | Built-in |
| Sensor Features | Gold-plated gas chamber, waterproof, corrosion-resistant |
| Sensitivity | High sensitivity with good selectivity |
| Stability | Excellent long-term stability |
| Interference Resistance | Resistant to water vapor interference, non-poisoning |
| Power Consumption | Low power design |
| Key Features | Multi-output (UART, analog, PWM), linear output, temperature compensated |
| Applications | HVAC systems, air quality monitors, smart homes, air purifiers, ventilation systems |
Package Includes:
- 1 x MH-Z19 infrared CO2 sensor for CO2 monitor
- 1 x Connecting Cable.
Vin: Positive Nutrition (Vin)
GND: Negative Power Supply (GND)
Vo: Analog output
PWM: PWM
HD: HD (zero for school, low for more than 7 seconds)
Rx: UART (RXD) TTL Data Entry Level
Tx: UART (TXD) of data output TTL level
Pins 1: Analog Output Vo
Brooches 2: None
Pins 3: Power Supply Negative (GND)
Brooches 4: Positive Feeding (Vin)
Pins 5: UART (RXD) TTL Data Entry Level
Pins 6: UART (TXD) of TTL Level of Data Output
Brooches 7: None
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