Driveway Alert System: Instantly Know When Someone Enters Your Property With Our Long Range Motion Sensor, Ideal For Protecting Driveways, Gates, And Entryways. Expandable Home Security: Customize Your Security Setup By Pairing Multiple Sensors With One Receiver, Covering All Access Points For A Complete Protective Barrier. Wireless Motion Sensor Alarm: Our System Offers A Range Of Up To 500 Ft, Ensuring You Receive Alerts From Anywhere On Your Property, Whether It's Day Or Night. Security Chime with LED Indicators: Choose From 38 Melodies To Suit Your Taste And Set The Volume To Your Preference, Making Sure You're Never Caught Off Guard. Easy Installation: The Sensor Installs Effortlessly On Any Surface And Operates On Batteries, While The Receiver Simply Plugs Into A Standard Outlet, Ready To Serve You In Minutes. Say goodbye to unexpected surprises with the AlertMaster driveway alert system. Designed to enhance your security without compromising on convenience, this system is your first line of defense against intruders. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin