Based on your location it seems like you might be looking for the Canadian site.
Would you like to continue, or switch to the Canadian site?
NuTone Doorbell Installation Time Study
Most doorbells run on low voltage electricity. These installations require a transformer and, often, holes to be drilled in floors and door frames. NuTone's new Line Voltage Doorbell connects directly to the line voltage of the home and does not require an external transformer, thereby cutting installation time by more than 60%.