CO2 Air Quality Sensor, 400-5000ppm, RS485 Output

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SKU: SUCH-CO2-FS00820B

$188.54

● 400-5000ppm CO2 ● Modbus-RS485 output ● 1 ppm CO₂ resolution ● DC 10V-0V working voltage

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

This CO₂ air quality sensor supports Modbus-RS485 communication for seamless integration into automation projects. It stably monitors CO₂ concentrations within the 400–5000ppm range with a resolution as high as 1ppm. Featuring DC10–30V power supply and ultra-low power consumption ≤200mA, paired with a flame-retardant ABS housing and duct-mounted installation, it is suitable for long-term continuous operation.

Feature

CO2 air quality sensor feature

Duct-mounted air quality sensors are specifically designed for measuring air quality within ducts. Featuring an insertable structure combining ducting and flanges, they facilitate easy installation and integration according to specific site conditions.
The CO₂ air quality sensor offers a wide measurement range, high accuracy, and excellent linearity, supporting RS485 digital output.
The SUCH air quality sensor rapidly detects minute concentration changes in the air, enabling real-time visualization of indoor air quality. Its strong compatibility facilitates seamless integration into various ventilation, fresh air, and building automation systems.

Dimension (unit: mm)

CO2 air quality sensor dimension

Wiring

Wire Color	Description
Red	VCC, Power Input DC 24V
Black	GND, Ground Terminal
Blue	Modbus-A	V1	IOUT1
Green	Modbus-B	V2	IOUT2

Specs

CO₂ Range	400-5000ppm
CO₂ Resolution	1 ppm
CO₂ Accuracy	±(50 ppm+3% of reading)
Operating Voltage	DC 10V-30V (Standard 24V)
Operating Current	≤200mA
Preheating Time	3min
Output Mode	Modbus-RS485
Material	ABS flame-retardant shell
Installation Method	Pipeline type
Operating Temperature	-10°C~50°C
Operating Humidity	0%RH~95%RH (Non-condensing)
Storage Temperature	-30°C~60°C
Storage Humidity	0%RH~99%RH (Non-condensing)
CO₂ Lifetime (in Air)	10 years

Application

Supermarket

Subway

Livestock Farming

FAQ

Q1: What does a carbon dioxide air quality sensor measure? ❯

A carbon dioxide air quality sensor measures the concentration of carbon dioxide in the air, typically expressed in parts per million (ppm). It helps assess ventilation efficiency, indoor air quality, and potential health risks associated with elevated carbon dioxide levels in homes, offices, factories, or agricultural environments.

Q2: How accurate are CO₂ air quality sensors? ❯

Most CO₂ sensors achieve an accuracy of ±(50 ppm + 5%) under standard conditions. High-end non-dispersive infrared (NDIR) sensors offer long-term stability, low drift characteristics, and strong resistance to interference from humidity and temperature fluctuations.

Q3: Where should CO₂ air quality sensors be installed? ❯

To ensure detection accuracy, air quality sensors should be mounted at breathing height, away from doors, windows, air conditioning units, and direct sunlight. Avoid installation in corners or enclosed spaces to prevent stagnant air accumulation.

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CO2 Air Quality Sensor, 400-5000ppm, RS485 Output

Feature

Dimension (unit: mm)

Wiring

Supermarket

Subway

Livestock Farming

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