Chamberlain CWA2000 motion detector

30 feet range, 120 degree coverage The CWA2000 Wireless Motion Alert notifies you with light and sound when people or vehicles approach your home or property, providing a sense of security anywhere you need it. Advanced wireless technology helps monitor any perimeter – whether it be a home, a worksite, or virtually any property – from one convenient location. Box contains 1 base station, 1 motion sensor, 1 AC adapter, mounting hardware, and non-slip feet.
- Transmits signal to base station up to a half-mile away
- Detection indicators with light and sound (distinguishable by sensor)
- Expandable up to 8 sensors for total perimeter coverage. Many uses such as: driveway, patio, deck, storage shed, farm, office/worksite, and more
- Detects motion up to 30 feet away with wide 120 degree coverage
- Adjustable sensitivity controls help prevent false alerts
- Wireless, weatherproof design makes it portable for use inside or out
- Easy to install, use, and maintain
- Receiver powered by AC adapter (provided); four AA batteries enable battery backup mode and temporary portability for length of battery life
- Receiver features adjustable volume controls
- Sensor requires four AA batteries
- 1-year warranty