NDIR Carbon Dioxide (CO2) Sensor, 0 to 2000ppm/0-6000ppm

SKU: SUCH-CO2-NDIR
$208.30
● 0-2000ppm/0-6000ppm ● Non-dispersive Infrared Absorption ● UART (Modbus), AC (0.4V ~ 2V) ● 1 ppm resolution
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🚚 Free shipping
🕒 Delivery date: 6-12 days
🔁 30-day Returns
Overview

Buy this high-precision SUCH non-dispersive infrared sensor for precise and stable carbon dioxide monitoring. With a detection range spanning 0-2000 ppm to 0-5% Vol, the CO₂ sensor enables real-time data output via UART or DAC interfaces, making it ideal for HVAC systems, indoor air quality monitoring, and greenhouse automation.

Feature

NDIR co2 sensor feature

  • Utilizing advanced non-dispersive infrared (NDIR) technology, this sensor precisely detects carbon dioxide concentrations, ensuring stable and reliable data to meet industrial and environmental monitoring requirements.
  • SUCH NDIR carbon dioxide sensor supports multi-range options (0–2000ppm to 0–5%Vol), suitable for diverse applications including laboratories, agriculture, and ventilation systems.
  • The CO₂ sensor features a fast response time of up to 30 seconds, providing real-time data updates to enable rapid detection of air quality changes and enhance system intelligent control efficiency.
  • The sensor consumes low power, requiring only DC 3.6–5.0V supply, and its interface supports UART (Modbus) communication, facilitating seamless integration into various industrial control systems.

Dimension (unit: mm)

NDIR co2 sensor dimension

Working Principle

NDIR co2 sensor working principle

Pin Definition

NDIR co2 sensor pin definition

 

Pin Description
PIN1 GND
PIN2 Voltage Input
PIN3 UART (RXD)
PIN4 Vout (0.4 ~ 2V)
PIN5 UART (TXD)
Specs
Detected Gas Carbon Dioxide
Measuring Range 0-2000ppm, 0-6000ppm, 0-1% Vol, 0-3% Vol, 0-5% Vol
Resolution 1ppm
Accuracy ± (50 ppm+3% of reading)
Detection Principle Non-dispersive Infrared Absorption (NDIR)
Response Time T90 ≤ 30s
Operating Voltage DC 3.6V~5.0V
Operating Current ≤ 85mA (@5V supply)
Preheating Time 1 min
Detection Frequency Data updated once per second (default)
Output Mode Default: UART (Modbus)
Reserved: DAC (0.4V ~ 2V)
Service Life 10 years (in air)
Operating Temperature -20°C~60°C
Operating Humidity 0~95% RH (non-condensing)
Storage Temperature -30°C~60°C
Application
NDIR co2 sensor of electrical distribution room

Electrical Distribution Room

NDIR co2 sensor of industrial plant

Industrial Plant

NDIR co2 sensor of  scientific laboratory equipment

Scientific Laboratory Equipment

FAQ

An NDIR (Non-Dispersive Infrared) CO₂ sensor is a gas detection device that measures carbon dioxide concentration based on infrared light absorption principles. CO₂ molecules absorb infrared radiation at specific wavelengths, and the sensor precisely determines gas concentration by analyzing the absorbed light intensity.

This CO₂ sensor consists of an infrared light source, optical filters, and a detector. As air flows through the detection chamber, CO₂ absorbs a portion of the infrared light. The detector measures the remaining light intensity, calculating the CO₂ concentration based on the difference in light intensity.

Ensure the airflow is clean and dust-free, and perform regular zero-point calibration. Maintaining the sensor in a temperature-controlled environment preserves measurement accuracy and extends its service life.

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