Yes, you can have multiple SkyBell devices on the same account. You can have multiple SkyBells on the same house, on the same WiFi network and in the same account. You can name each device as you please. For example, you could name a device “front door” and the other “back door.”
Also, you can have multiple devices on different houses or locations. For example, you could have “My Home” and “Grandma’s House”.