Compatible with Alexa and
Google home: It can also perform auto control together with other smart devices that are compatible with Smart life. The sensor door needs two AA batteries (not include). When the battery level is low, it will automatically push messages through APP to remind you to change the battery, never worry about running out of battery
Easy InstallationNo Need to use complicated tools when installation, just use 3M glue to install, firm and durable. The distance between the two components should be as close as possible, and the closest distance should not affect the opening/closing of the door or window