I tested this unit on the day it was shipped and it failed. Specifically, I added it to my wifi (and could see it in the Kidde app on my phone), pressed the test button on the device, waited for the voice prompt to activate the fire alarm, then held the test button on the smoke detector for 5 cycles. This device could not hear the alarm even though the smoke detector was in the same room. I have already returned the device and received a full refund.
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