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DWYER Carbon Dioxide/Temperature Transmitter: Building Management Controllers, Carbon Dioxide - Fixed Gas Detectors with Transmitters
DWYERFixed Gas Detectors with Transmitters

DWYER Carbon Dioxide/Temperature Transmitter: Building Management Controllers, Carbon Dioxide

The DWYER CDT-2D40 is a duct-mounted carbon dioxide and temperature detector transmitter for building management controllers. It measures CO₂ from 0 to 2000 ppm and operates on 16 to 35V DC or 19 to 28V AC.

SKU 3G-OTH-554844

Brand
DWYER
Item
Carbon Dioxide/Temperature Transmitter: Building Management Controllers, Carbon Dioxide
Category
Fixed Gas Detectors with Transmitters
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Technical Specifications

DWYER
Manufacturer Part Number
CDT-2D40
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-2D40 is a duct-mounted carbon dioxide and temperature detector transmitter for building management controllers. It measures CO₂ from 0 to 2000 ppm and operates on 16 to 35V DC or 19 to 28V AC.

Frequently Asked Questions

What is the DWYER CDT-2D40 used for?

The DWYER CDT-2D40 is a duct-mounted carbon dioxide and temperature detector transmitter used with building management controllers to monitor indoor air quality. It measures CO₂ from 0 to 2000 ppm and helps optimize HVAC ventilation in commercial facilities.

What are the specifications of the DWYER CDT-2D40?

The DWYER CDT-2D40 operates on 16 to 35V DC or 19 to 28V AC, detects carbon dioxide from 0 to 2000 ppm, and mounts in a duct. It is designed for use with building management controllers and is part of the DWYER CDT series.

Where to buy the DWYER CDT-2D40 worldwide?

3G Electric supplies the DWYER CDT-2D40 worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver this CO₂/temperature transmitter to building management projects across all regions.

How to install the DWYER CDT-2D40?

Install the DWYER CDT-2D40 in a duct location with proper airflow, following the manufacturer's wiring diagram for 16 to 35V DC or 19 to 28V AC power. Ensure the sensor is accessible for periodic calibration and verify output signals to the building management controller.

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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