1byone® Driveway Alert Doorbell Easy Chime Wireless PIR Motion Sensor Doorbell, Door Chime Kit With Sound and LED Flash 36 Melodies Tunes To Choose - Plug in Chime - Blue LED Light - 1 Year Warranty

Note: Includes 1 plug in receiver unit and 1 motion sensor, it perfectly combines the function of driveway alert with doorbell. Any 1byone "Easy Chime" Driveway Alert Doorbell Kits can work together, if you need additional sensor, please purchase O00QH-0513.
When the PIR detects the moving heat from car engines or human beings, the transmitter would be activated and send a wireless signal to the Receiver. The Receiver would sound. The sound will stop when the melody ends.
Easy to install and requires no wiring. Receiver easily plugs into an electrical outlet (no batteries required). Operating range of over 300 feet (between sensor and main chime unit).
Can be used as a simple alert unit instead of investing in costly security systems! Detecting and alerting when someone approaches a front door! Alert when a customer walks through the front door of a store or office! Alerting when a car approaches a driveway, and many more!
Powerful 120-decibel alarm sounds off when motion is detected within a 20-foot range. Unique security code between chime and sensor - avoid interference with neighbour's chimes. Blue LED Light, volume adjustment (upto 3 levels),36 Melodies Tunes To Choose,