Receive Real-time Alarms Remotely:when door/window is opened or closed, the sensor will push instant notification to your smartphone immediately.
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.
In addition, please make sure that there is no obstacle between the door sensor and wifi. Or the connetion will be easy to stopped
Use wifi easy to installl: No gateways and complicated cabling required, you can connect our WiFi door window sensor to your home Wi-Fi in just a few simple steps (2.4G Wi-Fi only).
You can use self-adhesive (included) set to install; just place the water leak detector near or under the equipment you wish to monitor
Alert message push: Protect your home with open / closed door detection. When the door / window is triggered, you will receive an alarm signal from your phone. Home Security Alarm make House more safety
Easy Installation：No Need to use complicated tools when installation,just use 3M glue to install,firm and durable.
The two arrows are opposite,the distance between the two compopents should be as close as possible,and the closest distance should not affect the opening/clsoing of the door or window
Low Power warning: The sensor door need with TWO AA Batteries(not include).
When the battery level is low, it will automatically push messages throuch APP to remind you to change battery, never worry about running out of battery