Shopping cart

Filters

Personal menu

Preferences

NDIR CO2 Gas Sensor, 0 to 2000/ 5000 ppm

5 out of 5 based on 2 reviews | Write a review

$138.73

Lower cost NDIR CO2 sensor for sale online. The carbon dioxide sensor with wide range measuring range from 0 to 5000 ppm, working voltage 5VDC, UART/ PWM two output signal can be chosen. Infrared carbon dioxide sensors are widely used in various occasions where flammable and explosive gases exist.

Measuring Range *

SKU: ATO-GS-CO2-Z16

Qty:

30-day Returns

Free Shipping

Delivery date: 8-12 days

Overview

Factory price NDIR CO2 gas sensor with 150 mA peak current, short preheat time 10s, the working temperature is -10℃ ~ 50℃. High quality carbon dioxide gas sensor has the advantages of no oxygen dependence, high sensitivity, low power consumption, and long life.

Features

High sensitivity, Low power consumption
Good stability
Temperature compensation, excellent linear output
Output method: UART, PWM
Long lifespan
Anti-water vapor interference, no poisoning

Specification

Model: ATO-ICDS-Z16
Detection gas: CO2
Working voltage: 5VDC
Average current: < 85mA
Peak current: 150mA
Interface level: 3.3V (5V compatible)
Measuring range: 0~50000 ppm range selectable (max. 150000ppm can be extended)
Output signal: UART/ PWM
Preheat time: 10s
Response time: T90 < 30s
Working temperature: -10℃ ~ 50℃
Working humidity: 0~95% RH (no condensation)
Storage temperature: -20℃ ~ 60℃

Measuring range and accuracy

Target gas	Measuring range	Solution	Accuacy	Mark
Carbon Dioxide (CO2)	0~2000 ppm	1 ppm	± (50 ppm＋5% reading value)	Temperature compensation
	0~5000 ppm
	0~10000 ppm
	0~5% VOL		< 1% VOL reading value
	0~10% VOL
	0~15% VOL

Dimension (mm)

NDIR CO2 Gas Sensor dimension

Pin Definition

PIN NO.	Description
PIN 4	Vin (Voltage Input)
PIN 3	GND
PIN 2	NC
PIN 7	PWM
PIN 1	HD (Zero Calibration, Keep Low Electrical Level for More Than 7 Seconds)
PIN 5	UART (RXD) TTL electrical Level Data Input
PIN 6	UART (TXD) TTL Electrical Level Data Output

Tips: What is NDIR CO2 Gas Sensor?

The infrared carbon dioxide sensor uses the principle of non-dispersive infrared (NDIR) to detect CO2 in the air. It has the characteristics of good selectivity, no oxygen dependence, and long life. It also has serial output and PWM output, which is convenient to use. The principle of non-dispersive infrared (NDIR) detects CO2 in the air and is widely used in various occasions where flammable and explosive gases exist.

Existing reviews of NDIR CO2 Gas Sensor, 0 to 2000/ 5000 ppm

A good CO2 sensor

Bought this sensor for a DIY air quality monitor. Installation was straightforward, and the readings look stable. It works as expected and gives me useful CO2 data in real time.

From: Dean | Date: 11/08/2026

Was this review helpful? Yes No (0/0)

Lower cost NDIR CO2 gas sensor

I needed a reliable CO2 sensor for my indoor air quality project, and this lower-cost NDIR model exceeded expectations. Carbon dioxide gas sensor offers solid performance for the price—accurate readings, fast response time, and simple integration using UART. The fact that it doesn't rely on oxygen for detection is a big plus. Great value for the cost, especially compared to similar sensors I've used before. Would recommend for anyone needing budget-friendly CO2 monitoring. Thanks!

From: Rowan | Date: 06/08/2025

Was this review helpful? Yes No (0/0)

Load more reviews...

Write your review for NDIR CO2 Gas Sensor, 0 to 2000/ 5000 ppm

Only registered users can write reviews

Review title:

Review text:

Rating:

Bad
Excellent

Customers who bought this item also bought

Carbon Dioxide (CO2) Sensor for Home, 0 to 2000 ppm

$208.30

SKU: ATO-GS-CO2-711A

Carbon dioxide sensor online for sale at reasonable price. NDIR CO2 sensor has wide measuring range from 0 to 2000 ppm, working voltage 3.6~5.0V DC, fast response time less than 120 seconds. Infrared co2 sensor is widely used for industrial field instrumentation, industrial-process control and safety protection.

Industrial NDIR CO2 Sensor for HVAC, 0 to 2000/ 6000 ppm

$345.08

SKU: ATO-GS-CO2-411D

Industrial NDIR CO2 sensor at affordale price for sale. The CO2 sensor HVAC with measuring range 0~2000 ppm/ 0~6000 ppm/ 0~1% VOL/ 0~3% VOL/ 0~5% VOL can be chosen, UART/ analog voltage signal two output method are available. The industrial CO2 sensor is widely used for HVAC refrigeration, industrial-process control and safety protection, agriculture and animal husbandry.

Infrared CO2 Sensor Module, UART/ PWM output

$104.56

SKU: ATO-GS-CO2-Z19C

Resonale price Infrared CO2 sensor module with UART/ PWM two output signal for selection, available measuring range 400~2000 ppm/ 400~5000 ppm/ 400~10000 ppm, working voltage 5VDC. The NDIR CO2 sensor can be used to monitor production processes in smart homes, agricultural greenhouses and animal husbandry.

NDIR CO2 Sensor Module, 0 to 10000 ppm

$126.03

SKU: ATO-GS-CO2-Z14B

High accuracy NDIR CO2 sensor module has optional measuring range of 0~10000ppm, UART/ PWM two output signals are optional. A carbon dioxide sensor is a high-performance product that closely combines mature infrared absorption gas detection technology with precise optical path design and precise circuit design.