The builder should consider the use of clock timers for the sales models lighting during the construction.

The electric bill for leaving the lights on continuously in foru or five models can become expensive…but it is too much work having the sales staff going through the models turning the lights on at the start of the day…and turning them off at the close of each day.

If the sales office opens at 10:00 AM every day, and closes at 6:00 PM, the timer could be set to turn on the electricity to the models at 9:00 AM, and off at 8:00 PM.

Any alarm system would need to be on a separate system (such as connected to the electrical meter ahead of the clock timer) so it could run 24 hours per day.