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

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SKU: SUCH-CO2-NDIR

$208.30

● 0-2000ppm/0-6000ppm ● Non-dispersive Infrared Absorption ● UART (Modbus), AC (0.4V ~ 2V) ● 1 ppm resolution

Measuring Range *

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

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

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)
Output Mode	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

Electrical Distribution Room

Industrial Plant

Scientific Laboratory Equipment

FAQ

Q1: What is an NDIR CO₂ sensor? ❯

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.

Q2: How does an NDIR CO₂ sensor work? ❯

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.

Q3: How should NDIR CO₂ sensors be maintained? ❯

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

Feature

Dimension (unit: mm)

Working Principle

Pin Definition

Electrical Distribution Room

Industrial Plant

Scientific Laboratory Equipment

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