Diy: Easy Installation. 3M Double-Sided Tape (Included) To Fix The SensorProfessional 24/7 Monitoring: The Smart Pir Sensor Provides 24-Hour Monitoring For Your Home. Use In A Room Or Anywhere You Want To Be Notified Of Motion Or Movement. Capture Every Activity And Send An Alert To Your Android Or Apple Phone. It'S Easy For You To Keep An Eye On Your Home Security Anytime, AnywhereQuick Instant Alerts: When Triggered, Such As Human Motion Or Movement, Instant Notification Will Be Reported To Your Smartphone Within 3-10 Seconds Depending On Internet Speed. Built-In Reminder Function Allows The Pir Sensor To Automatically Connect To The Network After Resetting The Wi-Fi Router Works With Other Aiiat Smart Products: With The Aiiat Smart Socket And You Can Create Your Own Scenes Such As The Socket Or The Home Appliance, They Can Be Turned On/Off Automatically When Motion Or Movement Is DetectedTwo-Mode Switch: There Are Two Modes For This Sensor. 2 And 4 Minute Mode. The Sensor Instantly Detects The First Movement And Waits 2 Or 4 Minutes Before Detecting The Next Movement. This Will Prevent False Alarms And Also Save Battery Life. You Can Choose What You Need-9