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...year battery life   General Information: Name: Qolsys QS5110-840 IQ Smoke Wireless Photoelectric Smoke Detector, Qolsys Inc, Qolsys Category: Qolsys, Intrusion, Life Safety Devices, Smoke Detectors UPC Code: 854545006177 Country...

Gentex Photoelectric Smoke Detector Description: The Gentex Photoelectric Smoke Detector works best for residential and commercial residential applications, including homes, apartments, hospitals, hotels, and motels. Additionally, this detector virtually eliminates...