Push instant notification to your phone immediately when door or window is opened or closed. so you don’t have to worry about your baby going out of house without notice,will easily know when your aged parents leave or arrive home and even can be clear when someone enters your home,shop,office ,etc.

Provides 24-hour monitoring. Even you are far away from your home,garage and office,etc, you can check whether the door/window is open or not with  app anytime and anywhere.

Loud alarm will be triggered when someone open or close your door or window, make you informed all the time.

Support checking unlock / lock records in app.Never worry about missing any important moment .If you install more than one door sensor in different places，all the statuses of doors and windows will be displayed simultaneously within the app ,so that you can easily know what you want at a glance.

Low Voltage Remind When the battery level is low, it will remind you to change battery, never worrying about running out of battery.

Share the added door sensors with your family member, they also can monitor the status of  your doors/windows when you are outside.

• Can be used for an anti-burglar system for your home
• Push an alert notification when a suspicious movement is detected
• Free to switch between two modes: alert and normal mode
• Work with SONOFF camera for watching who is that intruder
• 100°detection angle and 8M detection distance
• Share alert notifications to other users
• Notification history records check
• A universal joint for the optimal viewing angle (360°rotation)
• Keep linkage with SONOFF smart devices
• 3M adhesive or screw mounting (universal joint)

Note: SONOFF PIR3-RF doesn’t come with batteries into package.