10 Best Car Alarm Systems 2026 in the United States

The Viper 5305V 2 Way LCD Vehicle Car Alarm system is designed to enhance your vehicle's security with some solid features. One of its standout aspects is the two-way remote control, which allows you to receive feedback from the alarm, ensuring you know its status at a glance. The noise level of 125 dB is impressive, making it quite loud and likely to deter potential thieves. Its compatibility with Viper SmartStart also means you can control the system via your smartphone, providing added convenience.

The Viper 350 PLUS 3105V 1-Way Car Alarm Keyless Entry system offers robust security features for your car. It includes a 3-channel security/keyless entry system with two 4-button remotes that make locking and unlocking your car convenient. The system boasts a FailSafe starter kill, which helps prevent vehicle theft, and an anti-carjacking and panic alarm feature for added safety. The Revenger six-tone soft-chirp siren is loud enough at 121 dB to deter potential thieves, and the bright blue status LED provides a visual deterrent as well. Additionally, the parking light alarm response ensures you can easily identify when the alarm has been triggered. The Stinger DoubleGuard shock sensor is included for extra security, detecting any unusual vibrations or impacts.

The Compustar CS7900-AS is a solid choice for those looking for a comprehensive car alarm system with remote start capabilities. Its standout feature is the impressive 3000-foot range, allowing you to start or secure your vehicle from a considerable distance, which is particularly beneficial in large parking lots or when you're not right next to your car. The system comes with a 2-way interactive remote, providing visual and audible feedback, so you're always aware that your commands have been received. This is an excellent feature for anyone who values reassurance in car security.