Negative Positive
Title: Unreliable Product
Review: The unit started chirping every 30 seconds. I removed it from the ceiling and installed fresh batteries and put it back on the ceiling. The 30-sec chirping continued. I again removed it from ceiling and tried to vacuum any unseen dust from unit and installed a completely new set of batteries. The 30-sec chirping continued. The unit was discarded and replaced with another brand. And, after reading other reviews, I replaced all Kidde units in my home with another brand.
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