Features: Enhances your property's security with our Motion Sensors Alarm, a reliable solution for detecting any movement within its and alerting. Crafted from ABS material, this detector operates with batteries (not included) and for easy installation in various setting. For everyone concerned about safety, this Sensors alarm serves as a excellent precautionary measure for homeowners and renters alike. Perfect for extended or concealed driveways, this device ensures you're forewarned of guests' arrival or potential intruders, providing peace. Experience added security with this motion Sensors alarm, which seamlessly blends into your home environment while offering protections day and night. Specifications: Material: ABS Frequency: 315MHZ Battery: Transmitter: 3xAA Battery Requires(NOT Include) Receiver: 1x9V Battery Requires(NOT include) Size: About. 18x14x5cm/7.09x5.51x1.97in Package Includes: 1 Set Driveway Alarm note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.