SERENE CA-DB 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 Smart-Code Operating range: Up to 200ft,open space- actual distance varies according to house construction Up to 4 Model CA-DBs are supported Battery type: 2032 type coin battery Battery life: up to 10 months Operating temperature: + 10 to +30°C SICADB Features: Accessories : Yes Additional Sensors and Alarms : Yes Dimensions (LxWxH) : 3 x 1 x 5 Weight : 0.
2 lb.
Energy Star Qualified : No Country of Origin : PRC (provided by manufacturer,not verified) RoHS Compliant : No Type of Packaging : Retail Box Warranty : 1 Year