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Product Details

From the most remote corners of the Earth comes the fuel that makes modern life possible.

Carbon Dioxide CO2 Gas Detector

AN-CO2-D
Fixed carbon dioxide (CO2) gas detector with electrochemical sensing, 0-5% VOL measuring range, audible and visual alarm, and optional 4-20 mA / RS485 output for industrial gas safety monitoring.
Gas
Carbon dioxide (CO2) in air
Range
400-5000PPM
Output
3-wire / 4-wire / relay output; 4-20 mA or RS485 optional
IP
IP65
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Product Overview

This carbon dioxide (CO2) gas detector is designed for fixed monitoring of CO2 gas in air. It uses electrochemical sensing and advanced microprocessor technology to provide stable operation, strong anti-interference performance, fast response, and reliable alarm output. The detector supports adjustable high and low alarm values, 4-20 mA or RS485 signal output, audible and visual alarm indication, and wall or pipe mounting for industrial gas safety applications.

Key Features

Electrochemical sensing for carbon dioxide (CO2) detection in air.
Advanced microprocessor control for stable operation and strong anti-interference performance.
Supports 4-20 mA analog output, optional RS485 communication, and relay alarm output.
Adjustable high and low alarm values with audible and visual alarm indication.

Technical Specifications

Gas Detection
Detected Gas
Carbon dioxide (CO2) in air
Gas Type
VOC / Special Gas
Measuring Range
400-5000PPM
Detection Principle
Electrochemical, diffusion type
Response Time
<15 s
Accuracy
<±5% F.S.
Signal Output & Power
Signal Output
3-wire / 4-wire / relay output; 4-20 mA or RS485 optional
Power Supply
10-30 VDC
Alarm Output
Audible and visual alarm, 2 channel 24 V / 2 A
Communication
4-20 mA or RS485 optional; up to 2,000 m transmission distance when used with the company’s controller
Compatible Controller
Compatible with the company’s gas alarm controller
Display Method
Digital tube display
Alarm Setting
Adjustable high and low alarm values
Power Consumption
<2.5 W instantaneous peak
Installation & Environment
Installation Method
Wall mounting or pipe mounting
Protection Rating
IP65
Explosion-proof Rating
Ex d IIC T6
Working Temperature
-20°C to 55°C
Working Humidity
≤90% RH
Thread Size
G1/2

Ordering & Support FAQ

How do I choose the right gas detector model?

Please provide the target gas, measuring range, output signal, installation environment, and whether a controller is required. We will recommend a suitable configuration.

Can this detector connect to a gas alarm controller?

Yes. It can be used with a compatible gas alarm controller for centralized monitoring, alarm output, and signal transmission.

What output signals are available?

The detector can support common industrial signal outputs such as 4-20 mA, RS485, or relay output depending on the product configuration.

Can the alarm value be adjusted?

Yes. High and low alarm values can be adjusted according to the monitoring requirements of the application.

Can I request documents before ordering?

Yes. Datasheets, user manuals, wiring diagrams, and available certification documents can be provided upon request.