Amazon Basics 4 Units Pack 9 Volt Performance All-Purpose Alkaline Batteries, 5-Year Shelf Life, Easy to Open Value…

Echo Wall Clock helps you stay organized and on time.
Easy-to-read analog clock shows the time of day.
Digital 60 LED display shows one, or multiple, timers set through a paired Echo device.

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Smart Security Sensor – TESSAN door and window alarm sensor is designed to monitor the open / close status of any entrance. An alert notification will automatic send to you in seconds once the sensor triggered. Ideal for front door, window, baby room, garage and more. Door status and battery power can be check in app. No hub required. No extra cost. A must have security system accessories.
Programmable Sensor – Extend your smart home automation with TESSAN wifi door sensor. Set up your smart routines in app. Automatically turn on your smart wall switches/lights when door opened. Automatically turn off your air-condition when window opened. More smart devices can be sync as long as they compatible with Smart Life app. Support 2.4Ghz Wifi only, dual-band (2.4G&5G) WIFI need to set a separate 2.4G channel.

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Easy guided install: Neutral wire is required, standard wall plate size. No need to understand complex switch wiring or master vs auxiliary switch configurations; The Kasa app guides you through easy step by step installation. Need 2.4GHz Wi-Fi connection
Control from anywhere: Monitor your light status. Turn electronics on and off from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation