| Model No. | MH-Z19C |
| Detection gas | CO2 |
| Working Voltage | 5.0±0.1V DC |
| Average Current | <40mA (@5V power supply) |
| Peak Current | 125mA (@5V power supply) |
| Interface Level | 3.3V (Compatible with 5V) |
| Detection range | 400~10000ppm (optional) |
| Output Signal | Serial Port (UART) (TTL level 3.3V) |
| PWM | |
| Preheat Time | 1 min |
| Response Time | T90 <120s |
| Working Temperature | -10 ~ 50℃ |
| Working Humidity | 0 ~95% RH (No condensation) |
| Storage Temperature | -20~60 ℃ |
| Weight | 5g |
| Life Span | >10 years |
CO2 Sensor
MH-Z19C NDIR CO₂ Sensor Module | High Accuracy Infrared Carbon Dioxide Sensor for Indoor Air Quality & HVAC Systems
₹2,950.00 Price With Tax
| Detection range: | 400~10000ppm optional |
| Detection principle: | non-dispersive infrared (NDIR) principle |
| Characteristics: | 1. Chamber is gold plated; 2. High sensitivity, low power consumption; 3. Good stability; 4. Temperature compensation, excellent linear output;5.RESET compliant |
| Size: | 32.9×19.7×8.6mm（LxWxH） |
| Working conditions: | DC(5.0±0.1)V |
| Measurement range: | 400～2000 ppm 400～5000 ppm 400～10000ppm |
| Resolution and accuracy: | 1ppm±(50ppm+5% reading value) |
| Response time: | T90<120s |
15 Days Warranty
This product comes with a 15-day warranty starting from the date of delivery. The warranty covers manufacturing defects only. If a defect is confirmed, the item will be replaced.
Warranty will not apply if:
- The product has been misused, dropped, or damaged.
- It has been exposed to water, fire, chemicals, or static discharge.
- It has been tampered with, soldered, or altered in any way.
The MH-Z19C NDIR CO₂ Module is a compact and high-performance carbon dioxide sensor designed for accurate and stable CO₂ concentration measurement. Built using advanced Non-Dispersive Infrared (NDIR) technology, this module ensures precise detection with excellent long-term stability and low power consumption.
The MH-Z19C is widely used in indoor air quality (IAQ) monitoring, HVAC systems, smart ventilation control, air purifiers, schools, offices, and building automation systems. Its compact size and multiple output options make it ideal for OEM integration into monitoring devices and smart environmental control systems.
This CO₂ sensor provides real-time monitoring of carbon dioxide levels, helping maintain healthy indoor environments and energy-efficient ventilation control. With automatic baseline calibration (ABC logic) and temperature compensation, the MH-Z19C delivers consistent performance even under varying environmental conditions.
Key Features:
- Advanced NDIR infrared CO₂ detection technology
- High accuracy and strong anti-interference capability
- Measurement range typically up to 5000 ppm (model dependent)
- UART and PWM output options
- Automatic baseline calibration (ABC) function
- Built-in temperature compensation
- Low power consumption and compact design
Applications:
- Indoor Air Quality (IAQ) monitors
- HVAC and ventilation control systems
- Smart building automation
- Air purifiers and fresh air systems
- Greenhouse CO₂ monitoring
- Educational and laboratory equipment
| Weight | 0.200 kg |
|---|---|
| Dimensions | 12 × 6 × 6 cm |
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