After having ADT for a few years and seeing my bill triple in cost, I had heard about a company with over 30 years in business and decided to call them. Not only was their price the lowest, we had a very polite tech come and install a complete system. He was so neat, when he left, you wouldn't have even known he was there. Besides knowing we are secure when we need it, we are able to turn on our lights and unlock our front door with an app on our phone. We love it. We would highly recommend National Security. Thanks