Chamberlain CWPIR Add-On Motion Alert Sensor 1/2 Mile

Highlights:

• 1/2 mile range
• Transmits signal to base station up to a half-mile away
• 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
• Requires four AA batteries