CPVAN Home Security System, WiFi Smart Door Window Alarm Sensor with APP Alert, Remote Control, Base Station Alarm Siren…

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A great fit for home security: The receiver working together with the window door sensors, making it a burglar alarm system and your 24h private guard. Put whole-home security at your fingertips with APP whether you are at home or at work. Wireless range with 500ft, and no monthly fees!
Powerful DIY: SmartLife App has built-in defense zone functions and product attributes and has Armed, Disarmed, and Home modes, you can give accessories more personalized settings according to your needs. This door alarm has 10 alarm tones built-in, and you can customize different music for each door sensor(door chime or door alarm).