Volume of doorbell: 90db
Switch is not included
Working Voltage: DC 12V
Wired Doorbell for access control system
Need work with special power supply included singal port (Please refer to ''ASIN: B00V55INJE'')

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.3 inch
Height : 1.5 inch
Length : 3.7 inch

Item Weight: 2.4 ounce (View shipping rates and policies)
Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B00UX04BUC