Wifi Door Sensor: Wireless Window Sensor with App Alerts, Tuya Smart Contact Sen
$70.99
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Hey Smart Contact Sensor Door Window WiFi Alert App Notification Security Alarm
$16.49
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About this item
No hub required. Frequency: 2.4GHz WiFi. 🔐 Key Features 3M adhesive mounting tape. Battery Powered – Uses 2x AAA batteries (LR03 1.5V). Battery: LR03 / AAA x2 (not included).
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