If it's like their standard product, then yes, its just a knob on the inside. Asking for a keypad on the inside would be the same as asking for a key on the inside. Sure, some are setup that way and you need to evaluate your premises before choosing products. Many people have solid doors with no glass anywhere to worry about.
Anything that is battery operated needs to have DC contact terminals which are relatively easy to tap into and hardwire to a DC transformer. Just have to be careful of voltage drop over a long distance - so probably best not to home run. Typically a front door is quite close to a garage, so very easy to run some wire to the garage and plug it in there.
I'd love to see a detailed schematic and command set to help decide whether to use this in my new home.
Also useful would be details on whether there is a traditional key as part of the lock, and if so how resistant it is to bumping or drilling.