Monoprice Wireless Smart Door/Window Sensor – White (2-Pack) | Works with Amazon Alexa and Google Assistant, No Hub Required – From STITCH Collection

Powered by STITCH, the Wireless Smart Window and Door Sensor provides simple 24/7 remote monitoring of your home and office entry points, directly from your Android or iOS smartphone or tablet. Be the first to know. Send instant notifications directly to your smartphone whenever the door is opened or closed, giving you peace of mind, anytime, anywhere.

• 24/7 Remote Monitoring: Tap into your mobile device to monitor the status of the entry points around your home or work place. You can also check the battery life of the sensor. Conveniently review the logs and detection history, in case you missed an alert.
• Instant Notifications: Be the first to know. Receive instant push notifications and send alerts directly to your mobile devices whenever a protected door or window is opened or closed