Photo 1 of X-Sense Detector, Wireless Interconnected Smoke Alarm with 10-Year Battery Life and Transmission Range of Over 820 ft, SD20-W, Pack of 1

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Photo 1 of X-Sense Detector, Wireless Interconnected Smoke Alarm with 10-Year Battery Life and Transmission Range of Over 820 ft, SD20-W, Pack of 1Photo 2 of X-Sense Detector, Wireless Interconnected Smoke Alarm with 10-Year Battery Life and Transmission Range of Over 820 ft, SD20-W, Pack of 1