| Model No. | MH-Z19E |
| Detection Gas | CO2 |
| Working voltage | 5.0±0.1V DC |
| Average current | <40mA (@5V power supply) |
| Peak current | 125mA (@5V power supply) |
| Interface level | 3.3 V(Compatible with 5V) |
| Detection Range | 400~10000ppm(optional, see table2.) |
| Output signal | Serial Port (UART)(TTL level 3.3V) |
| PWM | |
| Preheat time | 1 min |
| Refreshtime | 2 s |
| Response Time | T90 <120s |
| Working temperature | -10 ~ 50℃ |
| Working humidity | 0 ~95% RH (No condensation) |
| Storage temperature | -20~60 ℃ |
| Weight | 5 g |
| Lifespan | >10 years |
CO2 Sensor
MH-Z19E NDIR CO₂ Gas Sensor Module | High Accuracy Infrared Carbon Dioxide Sensor for HVAC & Indoor
₹2,655.00 Price With Tax
MH-Z19E NDIR CO2 Module for accurate real-time carbon dioxide monitoring with UART/PWM output, ideal for HVAC, indoor air quality, and smart IoT systems.
| Model: | MH-Z19E |
| Detection range: | 400~10000ppm optional |
| Detection principle: | non-dispersive infrared (NDIR) principle |
| Characteristics: | 1. High sensitivity, low power consumption; 2, Good stability; 3. Temperature compensation, excellent linear output; 4. Multiple output modes: UART, PWM; 5.RESET compliant |
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-Z19E NDIR CO₂ Gas Sensor Module is a compact and high-performance carbon dioxide detection sensor designed for accurate, stable, and long-term CO₂ monitoring. Utilizing advanced Non-Dispersive Infrared (NDIR) technology, the MH-Z19E delivers precise gas concentration measurement with strong anti-interference capability.
This module is widely used in HVAC systems, indoor air quality (IAQ) monitors, smart ventilation systems, air purifiers, schools, offices, and building automation solutions. With its compact structure and low power consumption, the MH-Z19E is ideal for OEM integration in portable and fixed air monitoring devices.
The sensor features built-in temperature compensation and automatic baseline calibration (ABC logic), ensuring stable output and reduced drift over time. It provides reliable real-time CO₂ data, enabling efficient ventilation control, improved energy management, and healthier indoor environments.
Key Features:
- Advanced NDIR infrared CO₂ sensing technology
- High accuracy and strong repeatability
- Measurement range typically up to 5000 ppm (model dependent)
- UART and PWM output options
- Automatic baseline calibration (ABC)
- Built-in temperature compensation
- Compact size with low power consumption
- Long operational lifespan
Applications:
- Indoor Air Quality (IAQ) monitoring
- HVAC and smart ventilation control
- Building automation systems
- Greenhouse CO₂ monitoring
- Environmental monitoring devices
- Air purification and fresh air systems
| Weight | 0.200 kg |
|---|---|
| Dimensions | 12 × 6 × 6 cm |
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