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Gas and Specialty Sensors
Gas and Specialty Sensors

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KCO2 Series

CO2 and CO2/RH Sensors

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The KCO2 Series Carbon Dioxide Sensors measure environmental CO2 levels for use in demand-controlled ventilation, air-quality monitoring, and other HVAC applications. The sensor provides visual indication and analog output of CO2 levels. The units are equipped with push-button calibration and an easily accessible calibration port for field maintenance. Optional audible alarm indication, LCD display, or relay output is available.


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Features
  • 24 VAC/VDC power
  • 0-10V or 4-20 mA option
  • Optional RH transmitter
  • Push-button calibration
  • Calibration Port
  • Visual LED alarm
  • Optional relay, audible alarm and LCD display
  • LCD displays either parameter
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Specifications

Supply Voltage:20-28 VAC, 50/60 Hz, or 12-30 VDC, 5 VA @ 24 VAC, polarity protected

Signal Output:4-20 mA, 0-10V

Maximum Output :

Impedance: 500Ω max

Relay Output:(Optional) SPST 2A @ 24 VAC/VDC (Normally Open)

Relay Setpoint:1000 ppm CO2

Alarm Auditory :

Levels (Optional):65 dB, set at 1000 ppm of CO2

Accuracy:

CO2:±3% of reading or ±40 ppm

Humidity:5% of reading 20% to 80% RH

Measurement Range:

CO2:0-2000 ppm

Humidity:0% to 100%

Sensing Technology:

CO2:Non-dispersive IR (NDIR)

Humidity:Capacitive

Visual Indication:LED Flashes above 1000 ppm of CO2 Display Optional, four-digit LCD

Warm Up Time:<3 minutes

Operating Humidity:0% to 99% RH (noncondensing)

Operating Temperature:32° to 122°F (0° to 50°C)

Enclosure: White ABS, UL94V-0

Dimensions:

Wall:4.63"H x 2.88"W x 1.0"D (11.8 x 7.3 x 2.54 cm)

Duct Probe:6" L (15.2 cm), 1.7" (4.3 cm) diameter

Weight:

Wall:4 oz (0.11 kg)

Duct:8 oz (0.23 kg)

Warranty: 18 months

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Products

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QtyModelDescriptionIn StockList PriceInternet Price
KCO2-D-A CO2 SENSOR, 20MA OUT, DUCT In Stock482.08385.66
KCO2-D-A-A CO2 SENSOR, 20MA OUT, DUCT,BUZZER INFO498.18398.54
KCO2-D-A-A-LCD CO2 SENSOR, 20MA OUT, DUCT,BUZZER,LCD INFO554.53443.62
KCO2-D-A-A-LCD-R CO2 SENSOR, 20MA OUT, DUCT,BUZZER,LCD,RELAY INFO579.60463.68
KCO2-D-A-A-R CO2 SENSOR, 20MA OUT, DUCT,BUZZER,RELAY INFO522.10417.68
KCO2-D-A-LCD CO2 SENSOR, 20MA OUT, DUCT,LCD INFO538.43430.74
KCO2-D-A-LCD-R CO2 SENSOR, 20MA OUT, DUCT,LCD,RELAY INFO563.50450.80
KCO2-D-A-R CO2 SENSOR, 20MA OUT, DUCT,RELAY INFO507.15405.72
KCO2-D-V CO2 SENSOR, 10V OUT, DUCT In Stock449.88359.90
KCO2-D-V-A CO2 SENSOR, 10V OUT, DUCT,BUZZER INFO465.78372.62
KCO2-D-V-A-LCD CO2 SENSOR, 10V OUT, DUCT,BUZZER,LCD INFO522.33417.86
KCO2-D-V-A-LCD-R CO2 SENSOR, 10V OUT, DUCT,BUZZER,LCD,RELAY INFO547.40437.92
KCO2-D-V-A-R CO2 SENSOR, 10V OUT, DUCT,BUZZER,RELAY INFO491.05392.84
KCO2-D-V-LCD CO2 SENSOR, 10V OUT, DUCT,LCD INFO506.23404.98
KCO2-D-V-LCD-R CO2 SENSOR, 10V OUT, DUCT,LCD,RELAY INFO531.30425.04
KCO2-D-V-R CO2 SENSOR, 10V OUT, DUCT,RELAY In Stock474.95379.96
KCO2-RH-D-A CO2/RH SENSOR, 20MA OUT, DUCT In Stock615.48492.38
KCO2-RH-D-A-A CO2/RH SENSOR, 20MA OUT, DUCT,BUZZER INFO631.58505.26
KCO2-RH-D-A-A-LCD CO2/RH SENSOR, 20MA OUT, DUCT,BUZZER,LCD INFO587.93470.34
KCO2-RH-D-A-A-LCD-R CO2/RH SENSOR, 20MA OUT, DUCT,BUZZER,LCD,RELAY INFO713.00570.40
KCO2-RH-D-A-A-R CO2/RH SENSOR, 20MA OUT, DUCT,BUZZER,RELAY INFO656.65525.32
KCO2-RH-D-A-LCD CO2/RH SENSOR, 20MA OUT, DUCT,LCD INFO671.83537.46
KCO2-RH-D-A-LCD-R CO2/RH SENSOR, 20MA OUT, DUCT,LCD,RELAY INFO696.90557.52
KCO2-RH-D-A-R CO2/RH SENSOR, 20MA OUT, DUCT,RELAY INFO640.55512.44
KCO2-RH-D-V CO2/RH SENSOR, 10V OUT, DUCT INFO583.28466.62
KCO2-RH-D-V-A CO2/RH SENSOR, 10V OUT, DUCT,BUZZER INFO599.38479.50
KCO2-RH-D-V-A-LCD CO2/RH SENSOR, 10V OUT, DUCT,BUZZER,LCD INFO655.73524.58
KCO2-RH-D-V-A-LCD-R CO2/RH SENSOR, 10V OUT, DUCT,BUZZER,LCD,RELAY INFO680.80544.64
KCO2-RH-D-V-A-R CO2/RH SENSOR, 10V OUT, DUCT,BUZZER,RELAY INFO624.45499.56
KCO2-RH-D-V-LCD CO2/RH SENSOR, 10V OUT, DUCT,LCD INFO639.63511.70
KCO2-RH-D-V-LCD-R CO2/RH SENSOR, 10V OUT, DUCT,LCD,RELAY INFO664.70531.76
KCO2-RH-D-V-R CO2/RH SENSOR, 10V OUT, DUCT,RELAY INFO608.35486.68
KCO2-RH-W-A CO2/RH SENSOR, 20MA OUT, WALL In Stock549.70439.76
KCO2-RH-W-A-A CO2/RH SENSOR, 20MA OUT, WALL,BUZZER INFO565.80452.64
KCO2-RH-W-A-A-LCD CO2/RH SENSOR, 20MA OUT, WALL,BUZZER,LCD INFO622.15497.72
KCO2-RH-W-A-A-LCD-R CO2/RH SENSOR, 20MA OUT, WALL,BUZZER,LCD,RELAY INFO647.22517.78
KCO2-RH-W-A-A-R CO2/RH SENSOR, 20MA OUT, WALL,BUZZER,RELAY INFO590.87472.70
KCO2-RH-W-A-LCD CO2/RH SENSOR, 20MA OUT, WALL,LCD INFO606.05484.84
KCO2-RH-W-A-LCD-R CO2/RH SENSOR, 20MA OUT, WALL,LCD,RELAY INFO631.12504.90
KCO2-RH-W-A-R CO2/RH SENSOR, 20MA OUT, WALL,RELAY INFO574.77459.82
KCO2-RH-W-V CO2/RH SENSOR, 10V OUT, WALL In Stock517.50414.00
KCO2-RH-W-V-A CO2/RH SENSOR, 10V OUT, WALL,BUZZER INFO533.60426.88
KCO2-RH-W-V-A-LCD CO2/RH SENSOR, 10V OUT, WALL,BUZZER,LCD INFO589.95471.96
KCO2-RH-W-V-A-LCD-R CO2/RH SENSOR, 10V OUT, WALL,BUZZER,LCD,RELAY INFO615.02492.02
KCO2-RH-W-V-A-R CO2/RH SENSOR, 10V OUT, WALL,BUZZER,RELAY INFO558.67446.94
KCO2-RH-W-V-LCD CO2/RH SENSOR, 10V OUT, WALL,LCD INFO573.85459.08
KCO2-RH-W-V-LCD-R CO2/RH SENSOR, 10V OUT, WALL,LCD,RELAY INFO598.92479.14
KCO2-RH-W-V-R CO2/RH SENSOR, 10V OUT, WALL,RELAY INFO542.57434.06
KCO2-W-A CO2 SENSOR, 20MA OUT, WALL In Stock416.30333.04
KCO2-W-A-A CO2 SENSOR, 20MA OUT, WALL,BUZZER INFO432.40345.92
KCO2-W-A-A-LCD CO2 SENSOR, 20MA OUT, WALL,BUZZER,LCD INFO488.75391.00
KCO2-W-A-A-LCD-R CO2 SENSOR, 20MA OUT, WALL,BUZZER,LCD,RELAY INFO513.82411.06
KCO2-W-A-A-R CO2 SENSOR, 20MA OUT, WALL,BUZZER,RELAY INFO457.47365.98
KCO2-W-A-LCD CO2 SENSOR, 20MA OUT, WALL,LCD INFO472.65378.12
KCO2-W-A-LCD-R CO2 SENSOR, 20MA OUT, WALL,LCD,RELAY In Stock497.72398.18
KCO2-W-A-R CO2 SENSOR, 20MA OUT, WALL,RELAY In Stock441.37353.10
KCO2-W-V CO2 SENSOR, 10V OUT, WALL In Stock384.10307.28
KCO2-W-V-A CO2 SENSOR, 10V OUT, WALL,BUZZER INFO400.20320.16
KCO2-W-V-A-LCD CO2 SENSOR, 10V OUT, WALL,BUZZER,LCD INFO456.55365.24
KCO2-W-V-A-LCD-R CO2 SENSOR, 10V OUT, WALL,BUZZER,LCD,RELAY INFO481.62385.30
KCO2-W-V-A-R CO2 SENSOR, 10V OUT, WALL,BUZZER,RELAY INFO425.27340.22
KCO2-W-V-LCD CO2 SENSOR, 10V OUT, WALL,LCD In Stock440.45352.36
KCO2-W-V-LCD-R CO2 SENSOR, 10V OUT, WALL,LCD,RELAY In Stock465.52372.42
KCO2W-V-R CO2 SENSOR, 10V OUT, WALL,RELAY In Stock409.17327.34
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Accessories
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DIGITAL CONTROL SYSTEMS INCKCO2 Series
Overall rating 
4 / 5
4 / 5
Open Ratings Snapshot
Rating breakdown 2 reviews
5 Stars
0
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4.5 / 5
4.5 / 5
2 out of 2(100%)customers recommend this product.
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2
2 The KCO2 Series Carbon Dioxide Sensors measure environmental CO2 levels for use in demand-controlled ventilation, air-quality monitoring, and other HVAC applications. The sensor provides visual indication and analog output of CO2 levels. The units are equipped with push-button calibration and an easily accessible calibration port for field maintenance. Optional audible alarm indication, LCD display, or relay output is available.
Overall rating 
4 / 5
4 / 5
Open Ratings Snapshot
Rating breakdown 2 reviews
5 Stars
0
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4.5 / 5
4.5 / 5
2 out of 2(100%)customers recommend this product.
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Product reviews
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Ratings summary
Overall rating 
4 / 5
4 / 5
Open Ratings Snapshot
Rating breakdown 2 reviews
5 Stars
0
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4.5 / 5
4.5 / 5
2 out of 2(100%)customers recommend this product.
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Product ReviewsWrite a review
Overall rating 
4 / 5
4 / 5
have been pleased with product preformance and quailty
PostedJune 30, 2011
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seemoreguy
 
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from springfield mo.
Years of Experience:11+
Job Function:Other
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4 / 5
4 / 5
have had good luck with this product and it fits most projects with no trouble. will continue to use this product.
My Favorite Feature easy to install
Pros: Good value, Always in stock
Yes, I recommend this product.
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Overall rating 
4 / 5
4 / 5
Less expensive better quality
PostedJune 2, 2011
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Zena
 
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from New Castle, DE
Years of Experience:11+
Job Function:Purchasing
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
5 / 5
5 / 5
We have used the Johnson Controls for years. Our customer insisted we try the Kele version. We now standardized on the Kele one. Not only is it less expensive but its a better quality.
My Favorite Feature the display
Pros: Good value, Always in stock
Yes, I recommend this product.
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