Sensor de movimiento con alarma inalámbrica, detector de movimiento infrarrojo con alarma de inducción, kit de timbre exterior (1 receptor + 2 transmisores)

Front Doorbell Kit: This wireless home security system is easy to install and can be easily DIY-ed, suitable for offices, residences, or homes. Wide Application: Suitable for entry doors, window frames, driveways, sidewalks, and anywhere in the home where motion alarms are needed. Infrared Detector: When movement is detected, the passive infrared (PIR) sensor transmits a wireless signal to a receiver up to 100 meters away. Motion Alarm: Infrared detection range: 3-7 meters; transmission frequency: 433 MHz; with audible alert. Easy Installation: Unique design and attractive appearance. Wireless Installation: Simply place the sensor at the driveway entrance and the receiver indoors.