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A/CO2-R2O

Automation Components, Inc.
Carbon Dioxide (CO2) Sensor 0V ~ 5V, 0V ~ 10V, 4mA ~ 20mA
Active25 in stock
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Overview

The A/CO2-R2O is a wall-mounted carbon dioxide sensor designed for indoor air quality monitoring and demand-controlled ventilation. It features a versatile triple-output design, providing 0-5 VDC, 0-10 VDC, and 4-20 mA signals simultaneously to ensure compatibility with various building automation systems. The device operates on a wide supply voltage range from 16.5 VDC to 40 VDC or 24 VAC, making it suitable for standard HVAC power infrastructures.

Why Choose This Part

The sensor offers high versatility with three concurrent analog outputs, simplifying integration into legacy and modern control loops. Its wide operating voltage and low average power consumption (under 0.9W) reduce the load on system power supplies. The housing is constructed from UL94-HB rated plastic, ensuring safety compliance for installation in commercial and residential settings.

Applications

Demand Control Ventilation (DCV)
Adjusting fresh air intake based on real-time CO2 levels to improve energy efficiency in HVAC systems.
Educational Facilities
Monitoring air quality in classrooms and lecture halls to ensure optimal CO2 levels for student concentration.
Commercial Office Buildings
Integrating with Building Management Systems (BMS) to maintain air quality in high-occupancy open-office environments.
Public Assembly Spaces
Managing ventilation in auditoriums, theatres, and gymnasiums where occupancy fluctuates significantly.

Key Specifications

Type Carbon Dioxide (CO2)
Output 0V ~ 5V, 0V ~ 10V, 4mA ~ 20mA
Voltage - Supply 24VAC, 16.5VDC ~ 40VDC
Operating Temperature 0degC ~ 50degC

Getting Started

Installation involves mounting the ABS plastic enclosure to a standard junction box and wiring the power and signal leads to a controller. Configure your PLC or BMS analog input to match one of the three available output scales: 0-5V, 0-10V, or 4-20mA. Ensure the environment stays within the 0 to 50 degrees Celsius operating range for accurate readings and long-term stability.

A/CO2-R2O Family

Part NumberDifferenceStock
A/CO2-R2O-CP CP 25
A/CO2-R2O-AN AN 25

Also Consider

SCD41 SENSensirion AG - A compact, surface-mount CO2 sensor module for engineers designing their own custom monitoring PCBs.