Best Aftermarket Car Alarm With Easy Set Up

Welcome to the Thomas guide to the best car alarms 2022. Thomas has been connecting North American industrial buyers and suppliers for more than 120 years. When you purchase products through our independent recommendations, we may earn an affiliate commission.

Car alarm systems are crucial for every vehicle. They ensure to alert the vehicle owner immediately in the event of a break-in by way of a loud siren thus providing a much greater chance of preventing the vehicle, and the belongings inside, from being stolen. That being said, not all factory car alarms are able to fully protect a vehicle, and older cars may not have an alarm system at all. That is why an aftermarket car alarm system is a great product to look into. Not only will it help secure a vehicle that does not have a factory-installed alarm, but it has more features to detect car theft and can provide security for a large range of vehicles.

Car alarm systems provide a lot more than just protection for your vehicle including keyless entry

Image credit: Shutterstock/Lenar Nigmatullin

Aftermarket car alarms are security systems that both detect possible theft and alert vehicle owners in emergency situations. These alarm systems typically come with a variety of sensors to detect any sort of suspicious activity or break-ins. These could be shock sensors, glass break sensors, or tilt sensors. Many car alarms will double as keyless entry systems, meaning users can unlock, lock, disarm, and open the trunk of the car remotely. Although these systems are able to be purchased online they often require professional installation.

Car Alarm—Buying Guide

Aftermarket car alarms come with a large variety of features to protect a vehicle from theft. The amount of protection and what convenience features a customer prefers in their anti-theft system will dictate what type of alarm system would be best for them.

Types of Car Alarm Systems

Different types of anti-theft systems allow for different levels of monitoring. Knowing the difference between these alarms will assist in the buying process and pinpoint the best car alarm systems for each customer.

One-Way

A one-way car alarm system is the most basic type of alarm. These types allow users to control their car through a key fob. Typically these commands control the door locks, the alarm, and the trunk. The name comes from the system's ability to send commands to the car but the car cannot communicate with the user.

Two-Way

A two-way alarm, on the other hand, has the same abilities to send messages and commands to the car through a key fob, but the car can also send alerts or updates to the user. This is done through a separate LCD remote that controls the same system as the key fob. Some remotes monitor things such as alarms status, if the vehicle is locked or not, engine life, and battery status, and also if there is a car alarm drain. This type of system is good for preventing false alarms as users can visibly see their vehicle's status and any alarm updates.

Other Car Alarm Considerations

Beyond looking for a certain type of system, car alarms vary based on what different features are included. Some features, like the fault-proof starter interrupt, provide additional hijacking protection. This particular function disables the engine's starter so even if a thief were to enter the car, they would not be able to start the car or move the steering wheel. A shock sensor is key for proper vehicle protection. The shock sensor detects any unusual vibrations or impacts that could be caused by someone trying to enter the vehicle or breaking a window.

Other features are less for security reasons and more for the comfort and ease of the user, the most common of which is remote start. The remote engine start allows users to heat up, cool down, and start their vehicle from a distance. This remote system is very convenient and is safer than leaving a set of keys in the engine when warming a car up.

Another optional feature is a push start button. Push buttons allow for more ease of use as they don't even require users to take their key out to drive, as long as the remote is in the car. Active alarms allow for both further security and convenience as these systems will automatically lock and unlock a vehicle when the key fob is in a certain range. This means that the system will arm itself automatically, so even if the owner forgets to lock and arm their car, the car will still be safe and protected.

Thomas' Top Picks for the Best Car Alarms 2022

Our list features some of the best car alarm systems that will provide top-notch security for all kinds of vehicles.

Best-Rated Car Alarm System: Directed Avital One-Way Security System | Buy Now

Best One-Way Alarm System: Prestige APS787Z One-Way Remote Start with Keyless Entry and Security System | Buy Now

Best Two-Way System: Compustar CS7900-AS Two-Way Remote Start and Alarm Bundle | Buy Now

Best Basic Alarm System: Viper 3100V One-Way Security System | Buy Now

Best Passive Keyless Entry Car Alarm System: JUNHOM Passive Keyless Entry DC12V Car Alarm | Buy Now

Best Manual Transmission Car Alarm System: Crimestopper SP-502 Two-Way LCD Paging Combo Alarm | Buy Now

Best Car Alarm System with GPS Tracking: CARLOCK 4th Gen Advanced Real-Time 4G Car Tracker & Car Alarm | Buy Now

Best Car Alarm System with Failsafe Starter Kill: Viper 350 PLUS 3105V One-Way Car Alarm | Buy Now

Best Car Alarm System with Easy Installation: InstallGear Car Alarm Security & Keyless Entry System | Buy Now

Best Affordable Car Alarm System: Scytek A15 Keyless Entry Car Alarm Security System | Buy Now

Scroll down to read more about our top picks for the best car alarm systems according to many happy buyers.

*Prices listed in this article were as shown in US$ on Amazon.com (USA) as of January 2022

1. Best-Rated Car Alarm System—Directed Avital One-Way Security System

With 4.4 out of 5 stars from over 300 ratings, the Directed Avital one-way security system is one car alarm that can be relied on. This system includes two key fobs for keyless entry and remote trunk release. When triggered, the alarm causes flashing lights to further alert car owners and spook any car thieves. For a rather economical price, many were pleased with the value and quality of the product.

The impressive car alarm systems reviews for this product go to show why many have opted for this system over other car alarms. One happy buyer stated, "This is a good solid unit. Good features for the price and quite reliable." Another customer wrote, "Top brand alarm and very easy to install."

Specifications

Alarm Type: One-way

Range: 1,500 feet

Remote Start: No

BUY NOW: US$40.70, Amazon

2. Best One-Way Alarm System—Prestige APS787Z One-Way Remote Start with Keyless Entry and Security System

The Prestige one-way remote start security system goes beyond the performance of any standard one-way car alarm. The included key fob features five buttons that allow for more control over any vehicle. Most notably, this car alarm has a remote start feature that is very helpful during more extreme weather conditions. Users can heat up or cool down their car from inside their house without leaving the keys in the ignition.

This system also includes a valet mode, allowing easy bypass when the car is in the shop or when it is being parked by a valet attendant. The glass mount antenna has a one-mile range so users can lock the car doors, disarm the siren, pop the trunk, or remotely start the vehicle from across a parking lot. One buyer confirmed that the system has a "very good range from the antenna." Overall, "the cost-to-function ratio is superb," and "this is a great product for all around car security and remote control of external functions," according to another customer.

Specifications

Alarm Type: One-way

Range: 1 mile

Remote Start: Yes

BUY NOW: US$96, Amazon

3. Best Two-Way System—Compustar CS7900-AS Two-Way Remote Start and Alarm Bundle

Unlike a basic car alarm, the Compustar two-way remote start and alarm allows users to constantly see the status of their vehicle on an LCD screen. One shopper commented, "The best thing I like about this device is the remote control. It feels and looks attractive." Another customer added that the remote "allows you to know the status of the van all the time and it beeps if you happen to forget to arm the vehicle." Beyond the high-quality LCD remote, this two-way car alarm system offers many other convenient features.

These features include, but are not limited to, remote start capabilities, valet mode, panic mode, trunk release, a dual-zone impact sensor, and a starter kill. With a strong 3,000-foot range, one user who works at a prison found that the "remote started my vehicle from behind thousands of feet of concrete walls, metal doors, and razor-wire fence. I couldn't believe it." It is important to remember that this product, like many other car alarms, does require professional installation.

Specifications

Alarm Type: Two-way

Range: 3,000 feet

Remote Start: Yes

BUY NOW: US$199.95, Amazon

4. Best Basic Alarm System—Viper 3100V One-Way Security System

With many modern car alarm systems, there are a lot of complicated and advanced features that, for some, can be hard to control or get the hang of. So, for those who want a basic alarm system with all the necessary features, the Viper one-way security system is perfect. This alarm includes a three-button key fob that makes keyless entry quick and simple.

One reviewer confirmed that the system "doesn't have too many crazy features that make it hard to use." Although this aftermarket car alarm is very simple, it still has the essential security features to protect an owner's vehicle and their belongings. The dual-stage shock sensor and engine immobilization both work together to stop potential car thieves.

Specifications

Alarm Type: One-way

Range: 1,500 feet

Remote Start: No

BUY NOW: US$69.99, Amazon

5. Best Passive Keyless Entry Car Alarm System—JUNHOM Passive Keyless Entry DC12V Car Alarm

Car theft may be more likely to occur if users forget to lock their doors or arm their vehicles. That is why the JUNHOM passive keyless entry car alarm helps to prevent break-ins by automatically locking and arming a car when the owner forgets to do it manually. Not only does this car alarm prevent theft, but the system makes for a very user-friendly experience.

When users return to their car they won't have to sift through their pocket or bag to unlock their door. The car automatically unlocks when the key fob is within 1.5 to three meters. One customer wrote, "I just leave my key in my pocket, walk up to the car, and it unlocks when I get close." With this kit, users don't even need a key to start their car, as a convenient push-start button is included.

Specifications

Alarm Type: One-way

Range: 5 meters

Remote Start: Yes

BUY NOW: US$56.88, Amazon

6. Best Car Alarm System for Manual Transmissions—Crimestopper SP-502 Two-Way LCD Paging Combo Alarm

According to many customer reviews, the Crimestopper two-way paging combo alarm is a universal system that works great with many different types of vehicles, even those with manual transmissions. One user stated, "I installed this in my '94 Camaro with a manual transmission about eight months ago and it has been working great," and found that "it works safely with manual transmissions."

Another customer wrote, "I installed it on a Hilux manual transmission diesel truck and it works like a charm." With one LCD remote that can be recharged, users can keep an eye on up to two vehicles. As a backup, the set also includes a key fob with five different controls, such as trunk release. One buyer found that "the remotes are solid and work very well."

Specifications

Alarm Type: Two-way

Range: 3,000 feet

Remote Start: Yes

BUY NOW: US$119.95, Amazon

7. Best Car Alarm System with GPS Tracking—CARLOCK 4th Gen Advanced Real-Time 4G Car Tracker & Car Alarm

The Carlock car tracker and car alarm combines an alert system and a tracking device into one product. Instead of a loud siren going off when a car is tampered with, users are alerted on their phone. Most importantly, the GPS tracking can provide real-time and past vehicle locations, no matter how far the car is. With a quick install, that anyone can do at home, users can monitor their vehicle's battery status, if the engine has been started, and the health of the vehicle.

One shopper commented, "I get alerts if my car has been moved, bumped, vibrations from people leaning on it, and even when my engine has been started." Another reviewer found that "the best feature is that it alerts you if your vehicle starts and locks in route travel for you to follow if stolen." Although the service requires a monthly fee, it is a great value for double the car alarm features.

Specifications

Alarm Type: N/A

Range: N/A

Remote Start: No

BUY NOW: US$49.95, Amazon

8. Best Car Alarm System with Failsafe Starter Kill—Viper 350 PLUS 3105V One-Way Car Alarm

A siren will only do so much to prevent thieves from stealing a vehicle. Yet the Viper 350 plus car alarm includes a Failsafe starter kill that prevents the engine from starting if the system is armed, allowing users to have more confidence in their car security. For even more car protection the system features DoubleGuard shock sensors that alert users of any suspicious impact or vibration.

One buyer wrote, "Definitely worth the money if you're looking to add more security to your car." Another customer found that "the shock sensors have an outstanding range." Other commenters were impressed with the overall quality and reliability of the alarm system, with one writing, "The key fobs are well built and aren't flimsy," and another adding, "I have installed many alarms and Viper is one that is the most reliable."

Specifications

Alarm Type: One-way

Range: 100 meters

Remote Start: No

BUY NOW: US$119, Amazon

9. Best Car Alarm System with Easy Installation—InstallGear Car Alarm Security & Keyless Entry System

Many car alarm systems require professional installation, but for those who have automotive or electrical wiring experience and can install an alarm system themselves, the InstallGear car alarm security is great for quick and easy installation. One customer confirmed, "If you're mechanically inclined, own a multimeter, and a handful of tools, you can install this in just a few minutes to a few hours, depending on your skill level."

According to this customer, quick setup can be done thanks to this product's "extremely straightforward setup." Another user found that its simplicity was due to the "very detailed instructions." A visual diagram for wiring, that many buyers felt was very helpful, can be found on the product page.

Specifications

Alarm Type: One-way

Range: N/A

Remote Start: No

BUY NOW: US$32.99, Amazon

10. Best Affordable Car Alarm System—Scytek A15 Keyless Entry Car Alarm Security System

Users don't have to empty their wallets for a quality anti-theft system with the Scytek A15 car alarm security system that comes at the very economical price of under $30. This budget car alarm comes with all the security features of any other alarm system, like a dual-zone impact sensor. Plus, it is very customizable as users can choose to connect separate systems to this alarm for two-way communication through electronic devices, GPS tracking, and remote engine start.

This alarm system comes with two high-quality key fobs and it allows up to two cars to be controlled by the same remote. One happy buyer wrote, "Don't be afraid of this alarm because of the price. It is well built, feature-packed, has sleek, thin, easy-to-use remotes, and works incredibly well." The kit does not include a siren but one reviewer stated, "It doesn't come with a siren but you don't need it. Have it connected to the horn."

Specifications

Alarm Type: One-way

Range: N/A

Remote Start: No

BUY NOW: US$27.95, Amazon

The Best Car Alarm—Summary

For a powerful two-way alarm with lots of features, the Compustar two-way remote start and alarm (US$199.95, Amazon) is a very advanced product that is preferred by many happy customers, but for a quality alarm, albeit with fewer features but at a much lower price, the Scytek A15 car alarm (US$27.95, Amazon) is a great choice that won't hurt the budget.

We hope our review of the best car alarms has been helpful and you were able to find the best alarm system for your car to give you peace of mind and keep your car and belongings safe, whether you were after a budget option or a more advanced option with remote start and other techy features for added security. For more suppliers of related products, including security cameras, taillights, wheels, automotive windshields, and exhaust pipes, consult our additional guides, or visit the Thomas Supplier Discovery Platform.

Sources

• https://automotivelocksmiths.com/3-common-types-car-security-systems/
• https://www.reference.com/world-view/valet-mode-8def6caf300ae79c
• https://www.directeddealers.com/manuals/og/clifford/remotekeyless_owners.pdf
• https://getjerry.com/advice/how-to-choose-car-alarm-systems-by-denise-koenig
• https://www.compustar.com/how-car-alarms-work/

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