System Sensor CO-REPL Replacement CO Cell for COSMO-2W and COSMO-4W Detectors
System Sensor CO-REPL Replacement CO Cell for COSMO-2W and COSMO-4W Detectors
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System Sensor CO-REPL Replacement CO Cell for COSMO-2W and COSMO-4W Detectors

4.8 stars out of 4 reviews
(4.8)|
4 ratings

Key item features

  • Extended Cell-Life: Features a 10-year CO cell life for prolonged operational reliability.
  • Broad Detector Integration: Easily integrates up to 12 compatible detectors with a wide range of control panels.
  • Versatile Module Compatibility: Available in 2-wire and 4-wire modules, compatible with COSMO-2W/4W combination detectors and 2WTA-B/4WTA-B smoke detectors.
  • Distinct Signal Transmission: Sends distinct smoke and CO signals from i4 detectors to the control panel for clear event identification.
  • Maintenance Indication: Provides LED indication for 2-wire detectors when cleaning or maintenance is required, and initiates the EZ Walk loop test.
  • Interconnected Sounders: Module interconnects the sounders of all connected devices, eliminating the need for an RSS-MOD and offering optional trigger inputs.
  • Simplified Installation: Mounts to a 4-11/16-inch square back box with terminal blocks and pre-drilled holes for quick and easy installation.
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Current price is $54.65
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Columbus, 43215
Arrives by Thu, Feb 12
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Sold and shipped by Fire and Safety Plus
4.538461538461538 stars out of 5, based on 143 seller reviews(4.5)
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4.8 out of 5 stars
stars4 ratings2 reviews
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Showing 1-2 of 2 reviews

Jan 11, 2026
akakk114
Sold and shipped byFire and Safety Plus
5 out of 5 stars review

Verified Purchase

This was easy to replace and got the smoke detector back to functioning. This was also a 10-year part instead of 5 like the part it replaced which is nice.

Helpful?3YKCTHOJWNKZ507665088
Aug 25, 2025
Vivek
Sold and shipped byFire and Safety Plus
4 out of 5 stars review

Verified Purchase

This product saved us from replacing the entire CO unit with just a simple swap with this sensor.

Helpful?3YKCTHOJWNKZ507665088