Be safe and protected when in your house with the Fox's Driveway Patrol . This 2 piece device uses wireless technology and will alert you if a car or person passes by the transmitter. Simply place the transmitter near the entrance to your driveway, anything passing by the transmitter will case the receiver to sound a pleasant chime. The transmitter can also be placed by the front door to alert you if small children try to leave the house. If you're a business owner, you can place the unit by the front door and be alerted when customers enter the store while working in the back.To install, just place the transmitter outside and the receiver inside. 

Features & Benefits:

• Easy to Install
• Uses wireless technology so the transmitter can be palce up to 400 feet away from the receiver
• Transmitter measurement: 4 1/2 inches x 2 1/2 inches x 2 1/2 inches
• Receiver measurement: 4 11/16 inches x 3 1/2 inches x 1 1/2 inches
• The transmitter uses Passive Infra-Red (PIR) to detect motion