Points to consider while installing CCTV camera in shop/office

Find out which area is most important, example entry/exit, point of sale, cash drawers etc.
Now plan which area requires audio recording, example point of sale, customer interactions etc.
Now finalize your budget for the type of camera you want to go for i.e. Analog HD or IP & the resolution.
The more the number of camera’s covering a small area the more clarity you will get.
You can consider 10–15 ft area for one camera for overview.
Always have camera’s both viewing entry & exit, so that you will have a close view to identify any person.
Now choose the Hard disk capacity to at least 1 month, so that you can find out any theft during that period.
If your recording are critical, you can have a backup recorder installed at some nearby shop.
You can also install a DVR Safe, so that DVR is always safe while a theft is happening.
Try to give a UPS or inverter supply to CCTV, so that no recording is missed.
A video calling camera can also be installed separately for live video call, if someone enters your shop.