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    Unable to buy System Sensor Smokes & CO in Canada - any other recommendations?

    I was all set to put an order in for a set of System Sensor 2-wire CO and Smoke detectors (Cosmo-2w, Cosmod2w), but just found out that they are not ULC certified to be sold in Canada. Can anyone recommend other equivalent products that I can use instead? I am looking primarily for 2wire smoke...