TP-Link SR20 Smart Home Router & Hub Kit with CS100 Door Sensor and MS100 Smart Motion Sensor

With Motion Sensor connected to your Kasa Smart Home Router, your home can use motion sensing to become even smarter, and that makes your life simpler With Open-Closed Sensor connected to your Kasa Smart Home Router, you can keep an eye on doors, windows and drawers in your home wherever you are. The CS100 Smart Open-Closed Sensor from TP-Link works in conjunction with the SR20 router (available separately) to alert you whenever a door, window, or drawer is opened or closed. The sensor connects via Zigbee protocol to the SR20 router, which works as a hub. An included AA battery provides up to 2 years of battery life.