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KCO Series CO Carbon monoxide steel enclosure sensor

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KCO Series Carbon Monoxide Sensors are available in analog or relay versions. The sensors are provided in heavy-duty steel enclosures, and the sensors use lowtemperature components that are ideal for open parking garages in cold climates.



  • Two-stage alarming (KCO-R)

  • 0-200 ppm 4-20 mA output (KCO-A)

  • Microprocessor-controlled recalibration (KCO-A)

  • Heavy-duty enclosures • Operating temperature down to -4°F (-20°C)

  • Low-temperature option available -20°F (-29°C)

  • Temperature and humidity compensated

Power: 24 VAC/VDC ±20%, 260 mA
Power with LT option 1.125A
Relay contacts: 120 VAC, 2A resistive
Common Features:
Operating temp -4° to 185°F (-20° to 85°C)
Sensor type Solid-state metal oxide semiconductor
Alarm setpoints:
Warning/alarm; 10/20 ppm, 25/50 ppm
or 50/100 ppm, jumper selectable, (KCOP-R only)
Humidity 5% to 95% noncondensing
Enclosure dimensions 6.25"H x 6.125"L x 3"D
(15.9 x 15.6 x 7.6 cm)
Sensing technology: Electrochemical
LED indication Status:
Flashing green/red Power on,
microprocessor operating
Warning, Amber; Red, Alarm;
Setpoints Warning: 50 ppm, alarm 100 ppm
(reset 5-10 ppm change)
Warning stage delay: 30 seconds
Accuracy ±5% Sensor drift ±10% 2 years
Sensor life 10 years
Weight 3.0 lb (1.4 kg)
Warranty 18 months
Detection range: 0-250 ppm
Power: 24 VAC ±20%, 10 VA
Power with LT Option: 34 VA
Output signal: 4-20 mA into 500Ω max
Scale 0-200 ppm carbon monoxide
Response time:
Under 30 seconds Sensor life:
Approximately 10 years
Analog resolution: 12 bit
Reading delay 10 minutes



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