In this video I take a look at a Kidde Model# KN-COSM-IBA combination Smoke Alarm and Carbon Monoxide Detector. This alarm has a voice alert feature (which I don’t demonstrate in this video). I also open up an older Kidde alarm with similar features. You can see the IR LED and IR receiver.
Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/Battery Backup | Interconnectable | Model # KN-COSM-IBA (Amazon Affiliate)
US: https://amzn.to/2UtpDwJ
CA: https://amzn.to/3iyt7rF