The TP-Link SR20 smart home router and hub kit is down to $89.99 at B&H as part of the site's limited-time Mega DealZone. The router by itself sells for around $100 at other retailers like Amazon, and that doesn't include the price on the $20 CS100 door and window sensor and $20 MS100 motion sensor. Both of those sensors come included with the B&H kit and connect to the SR20 router by way of the ZigBee protocol. They support remote notifications, so you'll always know when a door or window is ajar or when there is motion detected in a given room, and the sensors can be used to trigger other smart home such as light bulbs.
The SR20 router not only provides you with a strong wireless signal, it also works with ZigBee and Z-Wave wireless protocols. Essentially this is a smart home hub in addition to being a router, so you can control smart devices around your home. It's compatible with Amazon Alexa devices, too, so it can work with voice controls. The router part is dual-band Wi-Fi with up to 1900 Mbps data transfer speeds. It comes with a two-year warranty.
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