It combines two types of warnings This as a replacement for one I had for about 5 years. The humidity here in Florida caused it to not last as long as specified. However, I understand that and wanted to replace it with the same item.
Verified purchase: Yes | Condition: New
Everything went well... so far. I placed these units in my attic and if they last the recommended 10 years then I will be singing their praises. As for now, they went in easy, came with all the parts and tested loud enough.
Verified purchase: Yes | Condition: New
Alarm came quickly and perfectly replaced the old fire alarm with additional gas detection too! :)
Verified purchase: Yes | Condition: New
Excellent Value. Long battery life. Safety and peace of mind.
Verified purchase: Yes | Condition: New
Universal base easy to replace old with new without additional drilling, etc.
Verified purchase: Yes | Condition: New
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