The CX-12 Line Voltage Monitor detects Carbon Monoxide and Nitrogen Dioxide in commercial facilities such as parking garages, loading docks, etc. This also has the Vehicle Exhaust System. It can be used as a stand-alone detector, controller, and as an analog transducer for use with Macurco control panels and other systems - ETL Listed.

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Previously the CX-12 and CX-6 had a 2-3 year replaceable sensor, NOW updated to a 4-5 year replaceable sensors.

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CX-12 CO & NO2 features:

• Digital display for CO & NO2

• Internal Buzzer

• Replaceable sensors

• End-of-Life notification

• 5A SPDT fan control relay, 0.5A N.O. alarm relay

• Selectable fan and alarm relay actuation settings

• 4-20mA current loop

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Also check CX-6: Low Voltage Monitor (12-24 VAC or 12-32 VDC) for more details.