- Centralalert Extra Wireless Doorbell
- When Pushed It Sends Wireless Signals To The Ca 360 To Let You Know That Someone Is At The Door
- Weather Resistant For Easy Outdoor Mounting
- Advanced Technology: 2.4 Ghz Smartcode
- Operating Range: Up To 200ft Open Space Actual Distance Varies According To House Construction
- Up To 4 Model Cadb's Are Supported
- Battery Type: 2032 Type Coin Battery
- Battery Life: Up To 10 Months
- Operating Temperature: + 10 To +30c
- Brand: Serene Innovations
