Google and Facebook make it easy to create ad accounts on their platforms for your security system business. They will reach out to you to help setup your account and offer guidance on how to create ad campaigns.
However, you need to understand what you are trying to accomplish with your pay-per-click ad campaigns. You need to understand how the ad platforms work and how to measure results. Otherwise, you will just get clicks and spend money but not have any ideas if you are meeting your goals which should be to get new leads or sales.