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Combo Smoke/CO

MarkH056

Member
I'm building a new home which requires hard-wired smoke and CO detectors. I had planned on using the System sensor COSMO-4W. But since the pandemic started, it's been impossible to get these ANYWHERE!  Does anyone know of a different manufacturer of a combination smoke/CO unit?  I don't think I can get my occupancy permit without it. 
 
Thanks,
 
Mark
 
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