Photo 1 of Feit Electric Smart WiFi Door and Window Sensor, Battery Powered, 2.4GHz No Hub Required, Remote Home Monitoring, Not Compatible with Other Security Systems, MOT/Door/WiFi/BAT

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Photo 1 of Feit Electric Smart WiFi Door and Window Sensor, Battery Powered, 2.4GHz No Hub Required, Remote Home Monitoring, Not Compatible with Other Security Systems, MOT/Door/WiFi/BATPhoto 2 of Feit Electric Smart WiFi Door and Window Sensor, Battery Powered, 2.4GHz No Hub Required, Remote Home Monitoring, Not Compatible with Other Security Systems, MOT/Door/WiFi/BAT