| Model No. | MH-Z1911A | Preheat time | 1 min |
| Detection Gas | CO2 | Response Time | T90 <120s |
| Working voltage | DC 5.0±0.1V | Working temperature | -10 ~ 50 ℃ |
| Average current | <30mA (@5V power supply) | Working humidity | 0~95%RH(No condensation) |
| Peak current | 125mA (@5V power supply) | Storage temperature | -20~60 ℃ |
| Interface level | 3.3 V(Compatible with 5V) | Weight | 5 g |
| Output signal | Serial Port (UART)(TTL level 3.3V) | Detection Range | 400~10000ppm(optional,see table2.) |
| PWM | Lifespan | >10 years |
CO2 Sensor
MH-Z1911A NDIR CO₂ Sensor Module | High Precision Infrared Carbon Dioxide Sensor for HVAC
₹2,596.00 Price With Tax
| Model: | MH-Z1911A |
| Detection range: | 400~10000ppm optional |
| Detection principle: | non-dispersive infrared (NDIR) principle |
| Characteristics: | High sensitivity, low power consumption; Temperature compensation, excellent linear output; Multiple output modes: UART, PWM |
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-Z1911A NDIR CO₂ Module is a high-accuracy carbon dioxide sensor designed for professional air quality monitoring and ventilation control systems. Built with advanced Non-Dispersive Infrared (NDIR) technology, this module delivers stable, reliable, and precise CO₂ measurements for both commercial and industrial applications.
Engineered for continuous monitoring, the MH-Z1911A offers excellent long-term stability, low drift performance, and strong resistance to environmental interference. Its compact design and multiple output interfaces make it ideal for seamless integration into OEM devices and smart monitoring systems.
This CO₂ sensor module is widely used in HVAC systems, building automation, indoor air quality (IAQ) monitoring, fresh air systems, smart agriculture, and environmental monitoring stations. By providing real-time CO₂ concentration data, it helps optimize ventilation efficiency, improve energy savings, and maintain healthy indoor environments.
Key Features:
- Advanced NDIR infrared CO₂ sensing technology
- High precision measurement with strong repeatability
- Wide detection range (model dependent)
- Fast response time and stable output
- UART / PWM output options
- Built-in temperature compensation
- Long service life with low maintenance
Applications:
- HVAC and ventilation control systems
- Indoor Air Quality (IAQ) monitoring devices
- Smart building management systems
- Greenhouse and agricultural CO₂ monitoring
- Environmental monitoring equipment
- Air purification and fresh air units
| Weight | 0.200 kg |
|---|---|
| Dimensions | 12 × 6 × 6 cm |
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