Interested in making your home a smart home? With this Wifi Smart Home kit you will be off to a good start. Included is a Window and Door sensor, PIR motion sensor, and siren. The window and door senor can be mounted on any window or door around the house. Once the window or door is opened an alert will be sent to your phone and to the siren. The PIR motion sensor can be mounted anywhere around the house. When the sensor is triggered an alert will be sent to your phone and the siren will activate. Both of these products can be set on a schedule to only activate an alert at a certain time. Controlled by Wifi with the App Tuya Smart. Compatible Google Home and Amazon Alexa.Item Size: 2.5 W x 3 H x 3 DImprint Area: 1.38 W x 0.63 H