Wireless Driveway Alarm System

Using cutting-edge motion detection technology, this Wireless Driveway Alarm System alerts you audibly the moment someone approaches, ensuring you never miss a visitor or delivery. Durable, and waterproof, the infrared sensor-measuring 2.5″ l x 2.25″ w x 4.15″ h-transmits up to a 400-foot range with motion detection activated within a 30-foot range. Place it at least 3′ high above the ground; uses 3 AA batteries (not included). The indoor-only chime unit has 3 settings; uses 3 C batteries (not included); and measures 3.5″ l x 1.5″ w x 4.8″ h. Includes mounting brackets and screws.