Publicación: 2014-04-09, Autor: Michael , crítica de: examiner.com
- Resumen: I purchased a pair of these smoke detectors to replace some old, hard-wired units that came with my house. They are linked together so that if one goes off, the other one will as well. Installation was a snap and the battery backup is a welcome feature. You can get a pair on Amazon for about $20....
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