• Wireless Motion Alert Extra Sensor
• Mfr. item number - CWPIR
• For use with the Chamberlain Wireless Motion Alert
• Up to 8 sensors can be used with each base station receiver
• Transmits signal to base station
• Detects motion up to 30 ft. away
• Wide 120-degree coverage
• Adjustable sensitivity control
• Helps prevent false alerts
• Wireless, weatherproof design
• Easy to install, use & maintain
• Requires (4) AA batteries
• Includes mounting bracket & hardware
• Weight: Approximately .56 pounds
• Shipping Dimensions: Approximately 6 x 4 x 4 inches.