Smart Wireless Door and Window Sensor with Real-Time Alarm Smartphone Monitor App Alerts Wireless Door Open Reminder for Home Security Protection

Features:
* The door sensor can not be used alone, which requires it to work with the console.
* When the door / window is opened illegally, the alarm host will make alarm sound and alert will be sent to the user's mobile phone in real-time.
* Powered by two AAA batteries with low power consumption, it offers you long-lasting battery life for up to over 2 years.
* Adopt RF433 wireless technology, it features superior ability to penetrate walls. The transmission distance can reach up to 200-300m in the open area.
* When the power is low, the sensor will push messages through APP to reminde user to replace batteries in time.
* Equipped with 433MHz wireless module, the sensor is widely compatible with a variety of alarm hosts with 433MHz.
* Compact and lightweight, easy to carry and install.