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10 Best Car Alarm Systems 2025 in the United States

#1

Winner

9.8 score

Compustar CS7900-AS All-in-One 2-Way Remote Start and Alarm Bundle w/ 3000 Feet Range

Compustar CS7900-AS All-in-One 2-Way Remote Start and Alarm Bundle w/ 3000 Feet Range

Compustar

9.8 score

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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.

Rating
9.8
Chosen by1,129
Sensors
Remote Control
Range

Most important from
1588 reviews

Sensors
The alarm system is robust and reliable, with advanced sensors that quickly detect unauthorized attempts and trigger alerts.
Remote Control
The 2-way remote start functionality is a game-changer for convenience, providing real-time updates and status notifications.
Range
The 3000-foot range for remote start and alarm is unparalleled, making it a standout feature.
Additional Features
The system offers flexibility with additional power wires and configuration options, plus add-ons for extra functionality.
Installation
Setting up the system was straightforward, with clear instructions ensuring seamless integration.
#2
9.6 score

CARLOCK Anti Theft Car Device - Real Time 4G Car Tracker & Car Alarm System. Comes with Device & Phone App. Tracks Your Car in Real Time & Notifies You Immediately of Suspicious Behavior.OBD Plug&Play

9%OFF

CARLOCK Anti Theft Car Device - Real Time 4G Car Tracker & Car Alarm System. Comes with Device & Phone App. Tracks Your Car in Real Time & Notifies You Immediately of Suspicious Behavior.OBD Plug&Play

CARLOCK

9.6 score

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The CARLOCK Anti Theft Car Device is a robust car alarm system designed to provide real-time tracking and immediate notifications of suspicious behavior through a phone app. The system monitors vehicle movement, engine start, and unusual vibrations, sending alerts directly to your smartphone, which makes it convenient for users who want peace of mind without worrying about their car’s safety. Additionally, it helps parents monitor their teenage drivers by tracking harsh acceleration, hard braking, and sharp cornering.

Rating
9.6
Sensors
Range
Additional Features

Most important from
4824 reviews

Sensors
The sensors are great but the key tag is spotty, though the app can automatically make the system active minutes after you park.
Range
The device always has a strong connection to the cell phone towers, never losing signal or dropping out of range.
Additional Features
The mobile app is fantastic, providing real-time information about the location of my car at all times.
Installation
Easy to install and setup. Very little instructions needed.
#3
9.4 score

Viper 5305V 2 Way LCD Vehicle Car Alarm Keyless Entry Remorte Start System

Viper 5305V 2 Way LCD Vehicle Car Alarm Keyless Entry Remorte Start System

Viper

9.4 score

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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.

Rating
9.4
Remote Control
Range
Installation

Most important from
1064 reviews

Remote Control
The two-way remote is amazing for quickly checking if your car is locked, even from a distance.
Range
The range of the remote is impressive, and it provides real-time updates on your car's status.
Installation
Installation may require professional help due to the need for additional components and complexity.

Top 10 Best Car Alarm Systems 2025 in the United States

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Slide 1

Spy Tec

Spytec Anti-Theft Plug-in Car GPS Tracker, Real-Time 5 Second Updates, Ignition On/Off Alerts, Vehicle Movements, Personal & Work Car Monitoring | Unlimited US & Worldwide Tracking App - Low Cost Plan

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#1

Winner

9.8 score

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Compustar

Compustar CS7900-AS All-in-One 2-Way Remote Start and Alarm Bundle w/ 3000 Feet Range

Type of Alarm: Car alarm with remote start
Sensors: Door, hood, trunk, impact
Remote Control: 2-way interactive
Range: 3000 feet
Additional Features: Visual and audible feedback
Installation: Professional installation required

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Chosen by 1129 this week

Sponsored

Slide 1

Spy Tec

Spytec Anti-Theft Plug-in Car GPS Tracker, Real-Time 5 Second Updates, Ignition On/Off Alerts, Vehicle Movements, Personal & Work Car Monitoring | Unlimited US & Worldwide Tracking App - Low Cost Plan

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#2

9.6 score

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CARLOCK

CARLOCK Anti Theft Car Device - Real Time 4G Car Tracker & Car Alarm System. Comes with Device & Phone App. Tracks Your Car in Real Time & Notifies You Immediately of Suspicious Behavior.OBD Plug&Play

Type of Alarm: Anti Theft Car Device
Sensors: Vehicle movement, engine start, vibrations
Remote Control: Phone app
Range: USA and Canada
Additional Features: Real-time tracking, notifications, driver monitoring
Installation: Easy to install using OBD port

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#3

9.4 score

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Viper

Viper 5305V 2 Way LCD Vehicle Car Alarm Keyless Entry Remorte Start System

Type of Alarm: Vehicle Car Alarm
Remote Control: Yes
Additional Features: Two-way remote, Viper SmartStart compatible
Installation: Professional installation required

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#4

9.2 score

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LNKERCO

108dB Car Alarm System, Vehicle Anti-Theft Vibration Sensor Alarm & Red Light, Wireless Remote Anti Theft Car Device with Magnetic Install Design for Car, Truck (Upgrade 4.0)

Type of Alarm: 108dB Car Alarm System
Sensors: 3D accelerated sensor with AI
Remote Control: Yes
Range: 66 Feet
Additional Features: Dual alarm, adjustable volume, magnetic mount
Installation: Magnetic mount, tool-free

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#5

8.9 score

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Compustar

Compustar RFX-P2WT13-SF PRO 3B 2-Way Water-Resistant Color LCD, 3-Mile Range, DR-X1, Proximity Unlock

Remote Control: RFX-P2WT13-SF, two 2-way remotes
Range: 3-mile
Additional Features: 2-way LCD, full-color screen, GPS
Installation: Professional installation might be necessary

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#6

8.7 score

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ePathChina

ePathChina Universal 12V Auto Car Alarm Keyless Entry System with Remote Control Siren Sensor

Type of Alarm: Universal 12V Auto Car Alarm
Sensors: siren sensor
Remote Control: Yes
Additional Features: anti-hijacking, central door locking, engine cut-off
Installation: may require technical know-how

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#7

8.4 score

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Viper

Viper 350 PLUS 3105V 1-Way Car Alarm Keyless Entry,BLACK

Type of Alarm: 1-Way Car Alarm Keyless Entry
Sensors: Stinger DoubleGuard shock sensor
Remote Control: Yes
Range: 100 meters
Additional Features: FailSafe starter kill, anti-carjacking, panic alarm
Installation: Control Center with antenna, valet switch

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#8

8.1 score

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Compustar

Compustar 2-Way Car Remote Start & Alarm Bundled with + (1) iDatalink ADS-Blade AL Universal Integration Cartridge

Remote Control: Yes
Range: 3000 Feet
Additional Features: 2-way communication, iDatalink integration
Installation: Seamless, compatible with multiple models

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#9

7.8 score

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LNKERCO

110dB Car Alarm System, Anti-Theft Vibration Alarm with 10 Levels Sensitivity Adjustable, Wireless Remote Anti Theft Device for Car, Truck, RV, E-Bike, Motorcycle

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#10

7.6 score

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Directed Electronics

Avital 3100LX Security System (W/O Siren)

Type of Alarm: 3-channel security system
Remote Control: two 3-button transmitters
Additional Features: keyless entry, LED status indicator, dome light

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Buying Guide for the Best Car Alarm Systems

Choosing the right car alarm system is crucial for ensuring the safety and security of your vehicle. With various options available, it's important to understand the key specifications and features that will best meet your needs. By focusing on these aspects, you can make an informed decision and select a car alarm system that provides optimal protection for your car.
Type of AlarmCar alarm systems come in different types, such as passive and active alarms. Passive alarms automatically arm themselves when you lock the car, while active alarms require you to manually activate them. Passive alarms are convenient and ensure your car is always protected, whereas active alarms offer more control. Choose based on your preference for convenience or control.
RangeThe range of a car alarm system refers to the distance from which you can control or monitor the alarm. This is important for ensuring you can arm or disarm the alarm from a distance, especially in large parking lots. Ranges can vary from a few hundred feet to over a mile. Consider your typical parking situations and choose a range that suits your needs.
SensorsCar alarm systems can include various sensors, such as shock sensors, motion sensors, and tilt sensors. Shock sensors detect impacts or vibrations, motion sensors detect movement inside the car, and tilt sensors detect changes in the car's angle. These sensors are crucial for detecting different types of threats. Evaluate the level of security you need and choose a system with appropriate sensors.
Remote StartSome car alarm systems come with a remote start feature, allowing you to start your car from a distance. This is useful for warming up your car in cold weather or cooling it down in hot weather before you get in. If convenience and comfort are important to you, consider a system with remote start capabilities.
Two-Way CommunicationTwo-way communication allows the car alarm system to send alerts to your remote or smartphone, informing you of any security breaches. This feature is important for real-time monitoring and quick response. If you want to stay informed about your car's security status at all times, opt for a system with two-way communication.
InstallationThe ease of installation can vary between car alarm systems. Some systems are designed for DIY installation, while others may require professional installation. DIY systems can save you money and allow for customization, but professional installation ensures the system is set up correctly and securely. Consider your comfort level with installation and choose accordingly.
CompatibilityEnsure the car alarm system is compatible with your vehicle's make and model. Some systems may not work with certain cars, especially older models. Compatibility is crucial for proper functioning and integration with your car's existing systems. Check the specifications and choose a system that is compatible with your vehicle.
Additional FeaturesCar alarm systems can come with various additional features, such as GPS tracking, smartphone integration, and panic buttons. These features can enhance the security and convenience of the system. Consider which additional features are important to you and choose a system that offers them.

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