SKU: SENS-0915
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MH-Z16 NDIR CO2 Sensor 0-1% Volume - UART/PWM Output

₹5,179.00 (Inclusive of all taxes)
Out of Stock

The MH-Z16 is a non-dispersive infrared (NDIR) CO2 sensor module offering 0-10,000 ppm measurement range with UART and PWM output interfaces. It provides stable, temperature-compensated readings suitable for integration with microcontrollers like Arduino, Raspberry Pi, and industrial PLCs for air quality monitoring.

Features

  • NDIR sensing principle for high selectivity and long-term stability.
  • Dual output interfaces: UART serial communication and PWM waveform.
  • Integrated temperature sensor for automatic compensation.
  • Low power consumption with average current below 50 mA.
  • Resistant to water vapor interference and sensor poisoning.

Out of stock

Description

The MH-Z16 CO2 sensor utilizes non-dispersive infrared (NDIR) technology to deliver accurate and reliable carbon dioxide concentration measurements from 0 to 10,000 ppm. Its design ensures excellent linearity and selectivity, with minimal cross-sensitivity to other gases. The module includes built-in signal conditioning and temperature compensation, providing a stable analog or digital output signal.

Engineered for durability, the sensor features a robust construction suitable for continuous operation in varied environments. Its UART interface allows for direct serial communication with host systems, while the PWM output provides a simple analog-like signal proportional to CO2 concentration, facilitating easy integration into HVAC systems, building automation, and environmental monitoring networks.

Key Features

  • Non-Dispersive Infrared (NDIR) sensing core for precise CO2 detection.
  • Dual output options: UART (TTL serial) and PWM waveform for flexible system integration.
  • On-board temperature compensation ensures accuracy across the 0 to 50°C operating range.
  • Low power design with an average current consumption under 50 mA.
  • High immunity to water vapor and common atmospheric contaminants.
  • Excellent long-term stability and sensor lifespan.
  • Compact form factor for easy installation in confined spaces.

Applications

  • HVAC system fresh air intake and demand-controlled ventilation.
  • Indoor air quality (IAQ) monitoring in offices, schools, and smart buildings.
  • Greenhouse and agricultural growth environment optimization.
  • Industrial safety and process control monitoring.
  • Educational and research equipment for environmental science.

Technical Specifications

Measurement Range0 ~ 10,000 ppm
Resolution (0-2000 ppm)1 ppm
Output InterfaceUART (TTL), PWM
Operating Voltage4.5 V to 6 V DC
Average Current Consumption< 50 mA
Response Time< 90 seconds
Warm-up Time~3 minutes
Operating Temperature0°C to 50°C
Storage Temperature-20°C to 60°C

Frequently Asked Questions

What are the output options for the MH-Z16 CO2 sensor?

The MH-Z16 provides two output interfaces: a UART (TTL-level serial) interface for direct digital communication with microcontrollers like Arduino or Raspberry Pi, and a PWM (Pulse Width Modulation) output where the duty cycle is proportional to the CO2 concentration. You can select the desired output mode via the sensor's configuration.

What is the power requirement and warm-up time for this sensor?

The sensor operates from a 4.5V to 6V DC supply, with an average current draw below 50 mA. Upon initial power-up, the sensor requires a warm-up period of approximately 3 minutes to stabilize its internal infrared source and reach full measurement accuracy.

How does the NDIR principle and temperature compensation work?

The sensor uses Non-Dispersive Infrared (NDIR) technology, where CO2 molecules absorb a specific wavelength of IR light. The sensor measures this absorption to determine concentration. A built-in temperature sensor provides real-time data for automatic software compensation, ensuring accuracy across the 0°C to 50°C operating range by correcting for thermal effects on the IR source and detector.

Can this sensor be used outdoors or in harsh environments?

While the MH-Z16 is resistant to water vapor interference, its specified operating temperature is 0°C to 50°C and it is not rated with a specific IP code for dust or water ingress. For reliable outdoor use or in harsh industrial environments, it should be housed in a protective enclosure that shields it from direct weather, condensation, and extreme temperatures outside its rated range.

Package Includes

  • 1 x MH-Z16 NDIR CO2 Sensor Module

Additional Information

Weight 0.14 kg
Dimensions 6 × 8 × 3 cm