A good home security system gives you peace of mind at home and away. Your home is often one of your most valued possessions. First Response of TN LLC is committed to providing you the best security options for your home at an affordable price. We offer alarms systems to protect your home and fit even the tightest budgets. Select the options you need at prices you can afford. Choose from both First Response of Tennessee Security and DSC Security alarm systems We are a locally owned family business serving hundreds of satisfied customers. All of our installers are licensed and fully trained, meeting all National Burglar and Fire Alarm Association.. Residential & Commercial Security. Video Surveillance.