0-2000 ppm w/display, surface mount
Item #: 14905
The CO2 sensor represents a wall mount carbon dioxide, humidity and temperature transmitter with display and active humidity and temperature outputs. It provides controlled ventilation with easy installation and a clean, modern look that suits most indoor environments.
The sensor is used mainly for demand-controlled ventilation to prevent energy losses from over-ventilation while maintaining indoor air quality, such as a conference room, classrooms, gyms and fitness centers.
Sensing Method
Non-dispersive infrared (NDIR)
Sensing Element
Capacitive polymer sensor
CO2 Measurement Range
0 to 2000 ppm (0 ppm = 0 V, 4 mA; 2000 ppm = 10/5V, 20 mA)
CO2 Accuracy Single Channel
400-1250 ppm ±30 ppm or 3% of reading (whichever is greater)
1250-5000 ppm ±5% of reading + 30ppm
*Tolerance based on span gas of ±2%
Power Supply Requirements
18-30V AC RMS, 50/60 Hz
Power Consumption
0.7 W at nominal voltage of 24V AC
Temperature Dependence
±0.11% per °F (0.2% FS per °C)
Flammability Classification
UL94 5VA
RH Range
0% to 99% RH (non-condensing)
RH Accuracy at 77°F (25°C)
±2.5% RH (20 to 80% RH)
±3.5% RH (80% RH)
Active Temperature Accuracy
±0.8°C at 72°F (22°C)
Active Temperature Range
32°F to 122°F (0°C to 50°C)
ABC Logic™ Self Calibration System
ABC Logic™ (Automatic Background Calibration) self-calibration allows the sensor to continually recalibrate itself when the indoor concentrations drop to outside levels while the building is unoccupied. Generally, a building must be regularly unoccupied for 4 hours or more for this self-calibration system to operate properly. Under these conditions, ABC Logic™ should maintain sensor calibration over the lifetime of the sensor. The ABC Logic™ should be turned OFF where a building is continuously occupied 24 hours per day, or where there could be significant sources of non-occupant related CO2 such as greenhouses, breweries and other industrial and food processing applications.
Output Analog
0 to 5 V, (100 Ω output impedance)
0 to 10 V (100 Ω output impedance)
4 to 20mA (RL maximum 500 Ω) available simultaneously for CO2 output
Digital to analog error ±1%
Nominal data | ||
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Voltage (nominal) | 24 | V |
Frequency | 50; 60 | Hz |
Input power | 1 | W |
Protection/Classification | ||
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Enclosure class | IP50 |
Controller and Sensors | ||
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Permitted humidity, non-condensing | 0 to 99 | %RH |
Permitted ambient temperature | 32 to 122 | °F |
Dimensions and weights | ||
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Weight | 0.4 | lb |
Optional | ||
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CO2 measurement | 0 to 2,000 | ppm |