This is the Red variant of the MH-Z19B Infrared CO2 Sensor Module for CO2 monitor in Gas and Dust Sensor. Available at ₹2,407.20 (₹2,040.00 + GST) with free shipping across India.
Looking for Z19b Module? MH-Z19B Infrared CO2 Sensor Module for CO2 monitor is available at Zbotic with fast shipping across India.
MH-Z19B Infrared CO2 Sensor Module for CO2 monitor
The MH-Z19B Infrared CO2 Sensor Module is an advanced device designed for accurate monitoring of carbon dioxide (CO2) levels in various applications. Here’s a description of the sensor module:
The MH-Z19B utilizes infrared absorption technology to measure CO2 concentrations in the surrounding environment. It features a compact and integrated design, making it suitable for integration into CO2 monitoring systems, environmental monitoring equipment, indoor air quality monitors, HVAC systems, and other applications where precise CO2 level measurement is critical.
This sensor module offers a wide measurement range of 400-5000 parts per million (ppm) for CO2 concentration, allowing it to detect even trace amounts of CO2. With its high accuracy of ±50 ppm + 3% of the measured value, the MH-Z19B provides reliable and consistent readings, ensuring precise monitoring of indoor air quality and environmental conditions.
Equipped with a digital output signal, typically using UART (Universal Asynchronous Receiver-Transmitter) communication protocol, the MH-Z19B seamlessly integrates with microcontrollers and other digital devices, enabling real-time data acquisition and analysis.
The sensor module features a fast response time of approximately 60 seconds, allowing for rapid detection of changes in CO2 concentration. Additionally, it has a short warm-up time of around 3 minutes, ensuring quick readiness for accurate CO2 measurement after power-up.
With its low power consumption and wide operating temperature range of 0°C to 50°C, the MH-Z19B is suitable for both indoor and outdoor applications. It also offers a broad storage temperature range of -20°C to 60°C, ensuring reliable performance even in harsh environmental conditions.
Periodic calibration may be required to maintain optimal accuracy, and calibration procedures can typically be performed using calibration software provided by the manufacturer.
Overall, the MH-Z19B Infrared CO2 Sensor Module provides a reliable, accurate, and easy-to-use solution for monitoring CO2 levels in various settings, contributing to improved indoor air quality, environmental monitoring, and energy efficiency.
Features:
- High sensitivity, high resolution.
- Low energy consumption.
- Output mode: UART and PWM wave.
- Temperature compensation, excellent linear output.
- Good stability.
- Long lifespan.
- Anti-interference of water vapor.
- No poisoning.
Specification:
Measurement Range: 400-5000 ppm
Operating voltage: 3.6 V ~ 5.5V DC
Average current: < 18 mA
High sensitivity, high resolution.
Low energy consumption.
Output mode: UART and PWM wave.
Temperature compensation, excellent linear output.
Good stability and long lifespan.
Anti-interference of water vapor.
Package Includes:
Datasheet:-
https://www.winsen-sensor.com/d/files/infrared-gas-sensor/mh-z19b-co2-ver1_0.pdf
MH-Z19B Infrared CO2 Sensor Module for CO2 monitor Overview
The MH-Z19B Infrared CO2 Sensor Module is a compact, high-precision device designed for real-time measurement of carbon dioxide concentrations between 400 and 5000 ppm. Ideal for integration into indoor air quality monitors, HVAC systems, and environmental monitoring equipment, it delivers reliable readings with low power consumption.
Key Features of MH-Z19B Infrared CO2 Sensor Module for CO2 monitor
- Measurement range of 400–5000 ppm for precise CO2 detection
- Operating voltage from 3.6 V to 5.5 V DC with average current < 18 mA
- Dual output modes: UART serial interface and PWM waveform
- Built-in temperature compensation and excellent linearity
- High sensitivity, high resolution, and long operational life
- Anti-interference design to resist water vapor effects
- Genuine product with fast shipping from Zbotic
Applications and Use Cases
- Indoor air quality monitors in homes, offices, and classrooms
- HVAC system feedback for demand-controlled ventilation
- Greenhouse CO2 management to optimize plant growth
- Industrial safety systems for confined spaces monitoring
- Portable CO2 logging devices for environmental research
- Smart home automation for air quality alerts
How to Use MH-Z19B Infrared CO2 Sensor Module for CO2 monitor
Power the MH-Z19B with a stable 3.6–5.5 V DC supply, then connect its TX/RX pins to your controller’s UART interface or wire the PWM output to an analog input. Expose the sensor to fresh air for baseline calibration (default 400 ppm), then read CO2 concentration values via serial commands or PWM duty cycle to incorporate into your monitoring system.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How do I interface the MH-Z19B with an Arduino?
Connect the sensor’s RX/TX pins to the Arduino’s TX/RX pins (use a logic‐level converter if needed), power it from 5 V, then use serial commands to request CO2 readings. Libraries like “MHZ19” simplify communication over UART.
How often should I calibrate the MH-Z19B sensor?
For best accuracy, perform a baseline calibration in fresh outdoor air (≈400 ppm) every 2–3 months. The module also supports automatic self-calibration when used in environments with periodic exposure to fresh air.
Will water vapor affect CO2 readings?
No—MH-Z19B features anti-interference measures against humidity and water vapor, ensuring stable CO2 measurements in environments with varying moisture levels.
Smoke Particle Counter: PM Sensor for Indoor Air Quality
Table of Contents Why Indoor Air Quality Matters Understanding PM2.5 and PM10 Types of PM and Smoke Sensors...
Read More →
Sharp Infrared Distance Sensors: GP2D12 Series Guide
Before ultrasonic sensors became the default choice for beginner obstacle avoidance projects, the Sharp infrared distance sensor series...
Read More →
Best IMU Sensors for Robotics & Drones in India (2026)
Choosing the right IMU (Inertial Measurement Unit) sensor can make or break your robotics or drone project. With...
Read More →Technical Specifications
| Model | MH-Z19B |
|---|---|
| Color | Red |
| SKU | AI2534 |
| Weight | 0.00845 kg |
| Availability | Out of Stock |
Applications & Use Cases
The MH-Z19B Infrared CO2 Sensor Module for CO2 monitor is a versatile gas and dust sensor used across a wide range of applications including air quality monitoring, gas leak detection, industrial safety, HVAC systems, and environmental monitoring.
Common use cases:
- Building a gas leak alarm for LPG/methane
- Monitoring indoor air quality (CO2, VOC)
- Dust monitoring in a workshop
This product is ideal for environmental engineers, safety professionals, and IoT developers.
Technical Tip: MQ-series sensors need a warm-up period (24-48 hours for first use). Calibrate in clean air for accurate readings.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
