Chamberlain CWA2000 Wireless Motion Alert - Extra Receiver

This item is an add-on Receiver for the Chamberlain CWA2000 Wireless Motion Alert. Below is a Description of the Driveway Alarm and it's complete features. If you do not own the Chamberlain CWA2000 Wireless Motion Alert specifically please take a look at that item before purchasing this item. State-of-the-art Chamberlain Wireless Motion Alert System alerts you the moment someone enters your property. You'll always have advance notice that you have visitors. System features compact, discreet adjustable infrared motion sensor that installs on garage, mailbox, fence post...nearly anywhere! When activated by the movement of people or vehicles, it transmit signals up to a half mile to the receiver. Multiple Receivers can pick up the signal from one or more sensors.