[Multiple Uses] Install the Alarm Sensor not only on front doors or windows, but also on garage doors, liquor cabinets, front gate, safety deposit box, pet doors and more..[Easy Install] No complicated installation tools are required. Please scroll down find the video in the main page how to add sensor to WIFI and Alexa.Low power consumption door sensor, super-long battery life avoid replacement frequently.[Compatible with Alexa and Google Home] No hub required and No fees charge. Pair our Smartlife app with either Alexa or Google Home and enjoy knowing the status of your door sensor without needing to use your phone. Convenient for you to detect your doors, windows, cabinets, drawers or anywhere you want to notified when it is opened or closed..[WIFI wireless connection] Intelligent wireless infrared sensor alarm,APP Remote Control.Use Tuya APP for free,it can be used independently by connecting to WIFI without connecting to the alarm main unit.Minimalist screen,easy operation, Real-time monitoring of whether there is anyone through the Tuya APP, when there is movement detected, the alert will be push to your phone,clear at a glance. Can be used with Alexa, Google Home and Siri..[Product quality and service] Our products are 100% tested and ensure that all products are qualified products before leaving the factory,and provide two-year warranty. Please rest assured to purchase and use.If you have any questions about the alarm system, please contact our customer - service anytime. We will solve it for you and make you satisfaction.