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Amazon.com : SimpliSafe Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System : Electronics
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SimpliSafe Smart Indoor Glassbreak Sensor, Wi-Fi Connected, Wireless ( Battery) - White (1-Pack) GBK301 - The Home Depot
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Amazon.com : SimpliSafe Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System : Electronics
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