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Sonoff Dw2 Wifi Wireless Door Window Sensor Open / Closed Detectors E-welink App Alert Notification Smart Home Security Alarm - Smart Remote Control - AliExpress
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SONOFF SNZB-04 ZigBee Wireless Door Window Sensor, Burglar Alarm for Home Security, Compatible with Alexa/Google Home, Batteries Is Not Included, Zigbee Bridge Hub Required - - Amazon.com
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SONOFF DW2 Wi-Fi Wireless Door Window Sensor,APP Alert for Home Automation Wireless Alarm Security System, Compatible with IFTTT, No Gateway Required.: Amazon.com: Tools & Home Improvement
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SONOFF DW2 Wi-Fi Wireless Door and Window Sensor with Phone Notification Home Security Motion Sensor Burglar Alarm System with App - Walmart.com
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Sonoff Dw2-rf 433mhz Wifi Wireless Door/window Sensor Ewelink App Smartphone Alarm Intelligent Scene Linkage Sonoff Rf Bridge - Automation Modules - AliExpress
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Sonoff RF Bridge 433MHZ Wifi Signal Converter PIR 2 Sensor / DW1 Door & Window Alarm Sensor Compatible with Alexa Google Home - Walmart.com
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