We researched the current market for keyless entry systems, analyzing manufacturer specifications, safety standards, and aggregated user feedback. We compared features like range, encryption, and ease of installation to identify the most reliable options available.
Our evaluation focuses on units that offer consistent performance and robust security without requiring professional installation tools. We assessed each kit based on real-world limitations and suitability for different vehicle types.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Crimestopper SP-101 Editor's Choice 2-way LCD remote confirmation |
9.0 | 🛒 Check Price |
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Crimestopper Cool Start RS-4-G5 Best Range 3000 foot range |
8.7 | 🛒 Check Price |
 |
Avital 4103L Best Value 1-way remote start system |
8.4 | 🛒 Check Price |
 |
Viper 350 PLUS 3105V Reliable Brand Stinger DoubleGuard shock sensor |
8.1 | 🛒 Check Price |
|
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Audiovox AS9233A Solid Budget Option 2000 feet range |
7.9 | 🛒 Check Price |
 |
Eway Universal Car Alarm Keyless Entry System Budget Pick Central door locking system |
7.4 | 🛒 Check Price |
|
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|
BOSS Audio Systems 815BRB Simple Install Single button operation |
7.1 | 🛒 Check Price |
1. Crimestopper SP-101: Editor's Choice
In our evaluation, the Crimestopper SP-101 stood out due to its impressive 2000 foot range and the inclusion of a 2-way LCD remote. We compared its transmitter reliability against others, and it consistently performed well in owner feedback regarding signal strength.
However, the wiring interface is complex, making it difficult for beginners. We recommend skipping this kit if you do not have experience with automotive electrical systems or plan to pay for professional installation.
- 2000 foot operating range
- Trunk release output
- Dual zone shock sensor
Pros: Reliable long range performance; Clear LCD feedback on remote
Cons: Installation complexity is high
2. Crimestopper Cool Start RS-4-G5: Best Range
We researched the RS-4-G5 and found it offers a superior 3000 foot range, which is significantly higher than the industry standard. Based on owner feedback, the signal penetration through walls is excellent, making it a top contender for large parking situations.
The downside is the bulkiness of the remotes, which many users find uncomfortable in pockets. If you prefer a slim, unobtrusive key fob, this model might not be the best fit.
- 2-way remotes included
- Keyless entry and remote start
- Diesel mode compatible
Pros: Exceptional signal range; Includes remote start capability
Cons: Remote size is bulky
3. Avital 4103L: Best Value
The Avital 4103L is a staple in the market, and our comparison highlights its strong value proposition. We analyzed its build quality and found the remotes to be durable despite the lower cost, offering solid keyless entry and remote start capabilities.
It lacks 2-way confirmation, meaning you will not know if the car actually started unless you see it. This limitation makes it unsuitable for users who require definitive confirmation from inside a building.
- 1500 foot range
- Dual button remotes
- Dedicated start input
Pros: Affordable price point; Reliable basic functions
Cons: Lacks 2-way confirmation
4. Viper 350 PLUS 3105V: Reliable Brand
We evaluated the Viper 350 PLUS and noted its reliance on the trusted Stinger DoubleGuard shock sensor for security. Owner feedback indicates the system is very reliable once installed, providing peace of mind through its accurate shock detection.
The operating range is average compared to modern standards, often failing to reach the claimed distance in urban environments. You should look elsewhere if maximum range is your primary concern.
- 4-button remotes
- Failsafe starter kill
- Parking light flash
Pros: Strong brand reputation; Good security features
Cons: Range is average
5. Audiovox AS9233A: Solid Budget Option
The Audiovox AS9233A offers a comprehensive feature set for a budget device. We compared its specs to higher priced models and found it surprisingly capable, offering both remote start and keyless entry with a decent range.
However, the documentation is poorly written, leading to frequent installation headaches. We suggest avoiding this kit if you are not comfortable troubleshooting wiring diagrams without clear guidance.
- Remote start and keyless entry
- Trunk pop capability
- Dual zone impact sensor
Pros: Low cost for features; Includes trunk pop
Cons: User manual is confusing
6. Eway Universal Car Alarm Keyless Entry System: Budget Pick
We researched the Eway Universal kit as a solution for older vehicles without central locking. It is one of the few kits that includes the necessary door actuators, which simplifies the buying process for comprehensive upgrades.
The build quality of the plastic components and remotes feels flimsy compared to established brands. Based on owner feedback, the remotes may fail after a year of use, so it is best for temporary fixes.
- 4 door lock actuators included
- Remote trunk release
- Built in shock sensor
Pros: Includes door actuators; Very cheap initial cost
Cons: Build quality feels flimsy
7. BOSS Audio Systems 815BRB: Simple Install
Our evaluation of the BOSS Audio Systems 815BRB shows it is a very basic system designed for simplicity. It removes the complexity of multiple buttons, which we found appealing for users who only want to lock and unlock their doors.
It severely lacks advanced security features like a shock sensor or starter kill. We recommend skipping this product if you live in an area with high vehicle theft rates or require comprehensive alarm capabilities.
- 1000 foot range
- Parking light flash
- Panic mode feature
Pros: Very simple interface; Easy to mount module
Cons: Limited security features
Frequently Asked Questions
Can I install a keyless entry kit myself?
Yes, many kits are designed for DIY installation, but they require knowledge of automotive wiring and access to your vehicle’s door panels and dashboard. We recommend reviewing the wiring diagrams before starting.
Do these kits work on manual transmission cars?
Most keyless entry kits work on manual transmissions, but remote start functions generally require a safety bypass sequence and are not recommended due to safety liabilities. Always check the specific product specifications.
What is the difference between 1-way and 2-way remotes?
1-way remotes send a signal to the car without confirmation, while 2-way remotes receive a signal back from the car to confirm the command was executed. We found 2-way systems offer more assurance in noisy areas.
Will I need a bypass module for my vehicle?
Modern vehicles with immobilizer chips usually require a bypass module to use remote start features. We compared compatibility lists and found this is necessary for most cars made after 2000.
How long do the batteries last in the remotes?
Battery life varies by usage, but standard CR2032 batteries typically last between 6 months and a year. Owner feedback suggests that 2-way remotes with screens require more frequent battery changes.
Our Verdict
Our top pick is the Crimestopper SP-101 for its excellent range and 2-way confirmation, making it ideal for those prioritizing feedback. The runner up is the Crimestopper Cool Start RS-4-G5, which offers an even longer range and remote start capabilities.
