Dwyer Instruments CDTC-2N000-LCD | Communicating carbon dioxide transmitter with temperature output | 2000 PPM range | North American housing and LCD display
The Dwyer CDTC-2N000-LCD is a communicating CO₂ and temperature transmitter with a 0-2000 ppm CO₂ range, Modbus RTU or BACnet MS/TP communication over RS-485, and an integral LCD display. It combines CO₂, temperature, temperature set-point and override functions in a single North American wall-mount housing for building automation and demand-controlled ventilation applications. Genuine stock at General Tech Services LLC, UAE, with free UAE-wide shipping. Request a quote in under a minute - call +971 6 5436933.
Part No. CDTC-2N000-LCD
Product Overview
The Dwyer CDTC-2N000-LCD is part of the Series CDTC communicating CO₂ sensor family, combining the functions of multiple room sensors into one compact wall-mount housing. It measures CO₂ from 0-2000 ppm and temperature while providing temperature set-point and override functionality.
The transmitter communicates through 2-wire RS-485 using either Modbus RTU or BACnet MS/TP. A 4-wire connection and daisy-chain capability can simplify installation and reduce wiring requirements for multiple sensors.
On-board DIP switches are used to set the RS-485 MAC address, select the communication protocol and control access to the setup menu. Barometric pressure can also be programmed to compensate for altitude. The integral LCD can display CO₂ concentration, temperature or temperature set point.
The CDTC-2N000 is the corresponding configuration without the integral LCD display.
Key Benefits
- Measures CO₂ from 0-2000 ppm and room temperature.
- Provides temperature set-point and override functionality.
- Supports Modbus RTU or BACnet MS/TP over RS-485.
- 4-wire connection and daisy-chain capability can reduce installation wiring.
- On-board DIP switches simplify MAC address and protocol selection.
- Integral LCD provides local CO₂, temperature and set-point indication.
- NDIR CO₂ sensing with a 15-year light source.
- Programmable barometric pressure for altitude compensation.
- Compact North American wall-mount housing.
- Genuine Dwyer stock with free UAE-wide shipping.
Who This Product Is Best For
- Commercial buildings requiring room CO₂ monitoring for demand-controlled ventilation.
- BMS installations using Modbus RTU or BACnet MS/TP.
- HVAC automation systems requiring both CO₂ and temperature monitoring.
- Projects that need CO₂, temperature and set-point functions in one wall-mounted device.
- RS-485 installations using multiple sensors with daisy-chain wiring.
- Applications requiring local LCD indication of sensor readings.
How to Specify & Commission It
- Confirm the 0-2000 ppm CO₂ range and wall-mount location are suitable for the application.
- Mount the North American housing on the wall in an appropriate sensing location.
- Wire the power supply and RS-485 connection, using the 4-wire/daisy-chain arrangement where required.
- Set the RS-485 MAC address and select Modbus RTU or BACnet MS/TP using the on-board DIP switches.
- Program barometric pressure for the installation altitude.
- Verify CO₂, temperature, temperature set point and communication readings before placing the system into service.
Frequently Asked Questions
What does the Dwyer CDTC-2N000-LCD measure?
It measures CO₂ from 0-2000 ppm and temperature, with temperature set-point and override functionality.
What communication protocols are supported?
The transmitter supports Modbus RTU or BACnet MS/TP over 2-wire RS-485, selected using the on-board DIP switches.
What is the CO₂ accuracy?
CO₂ accuracy is ±40 ppm ±3% of reading.
Does the CDTC-2N000-LCD have a display?
Yes. It has an integral LCD that can display CO₂ concentration, temperature or temperature set point.
Can multiple sensors be connected together?
Yes. The transmitter supports a 4-wire connection and daisy-chain configuration for RS-485 installations.
Does it support altitude compensation?
Yes. Barometric pressure can be programmed to compensate for altitude.
What is the difference between CDTC-2N000-LCD and CDTC-2N000?
The CDTC-2N000-LCD includes an integral LCD display, while the CDTC-2N000 provides the same core communicating CO₂ and temperature functions without the integral LCD.
Is genuine Dwyer stock available with UAE shipping?
Yes. Genuine Dwyer stock is available from General Tech Services LLC, UAE, with free UAE-wide shipping. Call +971 6 5436933 for pricing and current availability.
Request a Quote Today
For pricing or to place an order, contact General Tech Services LLC.
Call +971 6 5436933 | www.generaltechshop.ae
