There are traditional alarms that only provide you with an audible alert, which is not as useful as it once might have been. There are also car alarms that have a connection to your phone to provide you with an alert that the alarm has been triggered. Having a system that can provide alerts, along with GPS tracking, is a huge benefit. Systems such as CarLock can be added to your vehicle easily, and they can work in conjunction with the standard car alarm you have installed from the factory.