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DWYER CDT-2D4F Carbon Dioxide Detector Transmitter - Fixed Gas Detectors with Transmitters
DWYERFixed Gas Detectors with Transmitters

DWYER CDT-2D4F Carbon Dioxide Detector Transmitter

The DWYER CDT Series Carbon Dioxide/Temperature Transmitter (MPN CDT-2D4F) is a duct-mounted detector transmitter for building management controllers, detecting carbon dioxide across a 0 to 2000 ppm range. It…

SKU 3G-OTH-554837

Also listed as: CDT2D4F · CDT 2D4F

Brand
DWYER
Item
CDT-2D4F Carbon Dioxide Detector Transmitter
Category
Fixed Gas Detectors with Transmitters
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

DWYER
Manufacturer Part Number
CDT-2D4F
Series
CDT
Type
Carbon Dioxide, CO2
For Use With
Building Management Controllers
Gas Detected
Carbon Dioxide
Product Type
Detector Transmitter
Measurement Range
Carbon Dioxide (0 to 2000 ppm)
Mounting Location
Duct
Operating Voltage
16 to 35V DC/19 to 28V AC
Includes Calibration Certificate
No

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DWYER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER CDT Series Carbon Dioxide/Temperature Transmitter (MPN CDT-2D4F) is a duct-mounted detector transmitter for building management controllers, detecting carbon dioxide across a 0 to 2000 ppm range. It operates on 16 to 35V DC or 19 to 28V AC, integrating CO2 and temperature sensing into a single device for HVAC demand-controlled ventilation.

Frequently Asked Questions

What is the DWYER CDT-2D4F Carbon Dioxide/Temperature Transmitter used for?

The DWYER CDT-2D4F is a duct-mounted detector transmitter that measures carbon dioxide levels from 0 to 2000 ppm and temperature for building management controllers. It enables demand-controlled ventilation in HVAC systems, improving indoor air quality and energy efficiency in commercial and industrial facilities.

What are the specifications of the DWYER CDT-2D4F?

The DWYER CDT-2D4F detects carbon dioxide (0 to 2000 ppm) and operates on 16 to 35V DC or 19 to 28V AC. It is a duct-mounted detector transmitter from the CDT series, designed for use with building management controllers. It includes CO2 and temperature sensing in one unit.

Where to buy the DWYER CDT-2D4F worldwide?

3G Electric supplies the DWYER CDT-2D4F Carbon Dioxide/Temperature Transmitter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this duct-mounted CO2 transmitter.

How to install the DWYER CDT-2D4F duct-mounted CO2 transmitter?

Install the DWYER CDT-2D4F in a duct location with representative airflow, following the manufacturer's mounting instructions. Ensure the sensing ports face the airflow and wiring matches the 16 to 35V DC or 19 to 28V AC supply. Calibrate per the manual; note this unit does not include a calibration certificate.

Used in

Common applications for DWYER
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

DWYER Products

3G Electric supplies DWYER fixed gas detectors with transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Wall-mounted fixed gas detector transmitter for nitrogen dioxide (NO2) with a measurement range of 0 to 10 ppm. Features a digital display and is designed for use with building management controllers. Provides continuous gas monitoring for facility environments
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Wall-mounted fixed gas detector transmitter for nitrogen dioxide (NO2) with a measurement range of 0 to 10 ppm. Features a digital display and is designed for use with building management controllers. Provides continuous gas monitoring for facility environments
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Dwyer RHCN-7000 duct-mount transmitter measures temperature and relative humidity in HVAC ducts. It provides a 4 to 20 mA output signal for building management systems and environmental control. Powered by 230V AC, it operates from 32°F to 158°F
This duct-mount transmitter continuously measures and transmits both temperature and relative humidity in HVAC ducts, cleanrooms, and industrial process air streams. It features a 4 to 20 mA output for interfacing with building management systems or PLCs, and operates on 110V AC power within a temperature range of 32°F to 158°F
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This duct-mount transmitter continuously measures and transmits both temperature and relative humidity in HVAC ducts, cleanrooms, and industrial process air streams. It features a 4 to 20 mA output for interfacing with building management systems or PLCs, and operates on 110V AC power within a temperature range of 32°F to 158°F
Duct-mount transmitter for simultaneous temperature and relative humidity measurement in HVAC air-handling systems. Provides a 4 to 20 mA output signal for integration with building automation or control panels. Operates over a temperature range of 32°F to 158°F and is powered by 110V AC
Dwyer
Duct-mount transmitter for simultaneous temperature and relative humidity measurement in HVAC air-handling systems. Provides a 4 to 20 mA output signal for integration with building automation or control panels. Operates over a temperature range of 32°F to 158°F and is powered by 110V AC
CO2 detector Modbus CDTA-2E000
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Wall-mounted carbon dioxide detector transmitter for use with building management controllers. Detects CO2 from 0 to 2000 ppm. Operates on low voltage (12 to 24V AC, 12 to 32V DC). CE compliant
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