Series CDW2 Carbon Dioxide Transmitters

Monitors CO2, Temperature and Humidity, Optional LCD Display

The Series CDW2 Wall Mount Carbon Dioxide Transmitters monitor ambient carbon dioxide conditions for variable air volume (VAV) on demand ventilation systems. Universal current/voltage temperature and humidity outputs are also available to reduce the number of instruments mounted on the wall. The Non-Dispersive Infrared (NDIR) sensor continuously updates the calibration through a proprietary logic feature which limits the amount of error due to drift. A duct mount and a heated outside air enclosure are available enabling the CDW2 to be used in different environments.

Models & Ordering

Filter By

Model Description Usually Ships Price Order
CDW2-2W4A4
Ships: Consult Factory
Price: $440.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, 10kΩ Type III thermistor temperature output. Consult Factory $440.00 Order
CDW2-2W4B0
Ships: 3-4 Weeks
Price: $340.00
Carbon dioxide temperature transmitter, standard wall housing, 10kΩ Type II thermistor temperature output. 3-4 Weeks $340.00 Order
CDW2-2W4B4
Ships: 3-4 Weeks
Price: $440.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, 10kΩ Type II thermistor temperature output. 3-4 Weeks $440.00 Order
CDW2-2W4C0
Ships: Consult Factory
Price: $340.00
Carbon dioxide temperature transmitter, standard wall housing, 3kΩ thermistor temperature output. Consult Factory $340.00 Order
CDW2-2W4C4
Ships: Consult Factory
Price: $440.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, 3kΩ thermistor temperature output. Consult Factory $440.00 Order
CDW2-2W4D0
Ships: Consult Factory
Price: $345.00
Carbon dioxide temperature transmitter, standard wall housing, Pt100 RTD temperature output. Consult Factory $345.00 Order
CDW2-2W4D4
Ships: Consult Factory
Price: $445.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, Pt100 RTD temperature output. Consult Factory $445.00 Order
CDW2-2W4E0
Ships: Consult Factory
Price: $345.00
Carbon dioxide temperature transmitter, standard wall housing, Pt1000 RTD temperature output. Consult Factory $345.00 Order
CDW2-2W4E4
Ships: Consult Factory
Price: $445.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, Pt1000 RTD temperature output. Consult Factory $445.00 Order
CDW2-2W4F0
Ships: Consult Factory
Price: $340.00
Carbon dioxide temperature transmitter, standard wall housing, 20kΩ thermistor temperature output. Consult Factory $340.00 Order
CDW2-2W4F4
Ships: Consult Factory
Price: $440.00
Carbon dioxide temperature & humidity transmitter, standard wall housing, 20kΩ thermistor temperature output. Consult Factory $440.00 Order

Specifications

Range:
CO2: 0 to 2000 PPM;
Relative Humidity: 0 to 99%;
Active Temperature: 32 to 122°F (0 to 50°C).
Accuracy:
CO2: ±30 PPM or 3% of reading, whichever is greater;
RH: ± 2.5% (20 to 80% RH) / 3.5% (<20% and >80%);
Active Temperature: ± 1.5°F @ 72°F (0.8°C @ 22°C);
Thermistor: ± 1.9°F @ 60 to 95°F (1°C @ 15 to 35°C).
Temperature Dependence:
±0.11% FS per °F (0.2% per °C).
Pressure Dependence:
0.135% of reading per mm Hg.
Response Time:
Signal updates every 5 seconds.
Warm Up Time:
< 2 min (operational), 10 min (max. accuracy).
Temperature Limits:
Ambient: 32 to 122°F (0 to 50°C);
Storage: -40 to 158°F (-40 to 70°C).
Power Requirements:
18 to 30 VAC RMS 50/60 Hz.
Sensor:
CO2: Non-dispersive infrared sensor (NDIR) with ABC logic;
RH: Capacitive polymer sensor;
Temperature: 10 kO NTC thermistor.
Weight:
7.2 oz (204 g).
Agency Approvals:
CE, RoHS.

Accessories

Model Number Description Usually Ships Price Order
1508 Duct Mount Enclosure Same Day $105.00 Order
1552 Outside Air Measurement Enclosure Same Day $263.00 Order

Product Literature

Manuals

Catalog Pages

Approvals

Drawings

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