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CO1224T carbon monoxide (CO) detectors with Real Test® use a highly accurate and reliable electrochemical sensing cell to provide an early warning of dangerous CO levels.

CO1224T Series Carbon Monoxide Detector

Replacement carbon monoxide (CO) sensors for the i4 Series COSMO-2W 2-wire and COSMO-4W 4-wire combination CO and photoelectric smoke detectors

i4 Series CO/Smoke Detector Replacement CO Sensor

The conventional i4 Series combination CO/photoelectric smoke detectors simplify two technologies into one device, requiring less wiring and fewer backboxes than two separate devices.

i4 Series Combination CO/Photoelectric Smoke Detector

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