With Chamberlain®'s Motion Alert, you'll always have advance notice that someone's on their way to your door. Compact, discreet motion-sensor unit installs on garage, mailbox, fencepost... nearly anywhere.

And when activated, it sends a wireless signal to the receiver unit, up to one-half mile away! Then, when the unit's adjustable chime tells you you're about to have a visitor, you can prepare accordingly.

• Installs in minutes
• Completely wireless
• Receiver unit accepts signal from up to 8 sensors (one included), so you can protect a whole perimeter.
• Weatherproof components.
• Sensor: 4 ³/4 x 3 ¹/2 x 3"h., uses 4 AA batteries (not included).
• Receiver: 3 ¹/2 x 3 x 1 ³/4"h., uses 4 AA batteries (not included). 1 lb., 11 ozs. Additional Sensors sold below.

Chamberlain® Wireless Motion Alert / Sensor Kit

Additional Wireless Motion Alert Sensor