A strong two-way car alarm gives you confirmation or alerts on its remote and adds security features suited to your vehicle; the right choice depends on whether you also need remote start. Viper 5706V leads this lineup with a two-way LCD transmitter, remote start, and a listed one-mile range. Other options span systems with shock or ultrasonic sensors, LCD or LED remotes, and stated ranges up to three miles.
Several alarms do not include remote start, so check that distinction before choosing. Fitment also matters: EASYGUARD describes some systems as suitable for most 12-volt vehicles but calls for professional installation on the EC203.
The picks below separate feature-rich security-and-start bundles from alarm-only systems, making it easier to match the remote, functions, and installation requirements to your car.
The Viper 5706V is the best overall choice in this lineup because it combines two-way security with remote start, a five-button LCD transmitter, and a stated one-mile range. Its listed features also include four security channels and door and trunk triggers. If you need an alarm without remote start, compare options such as the EASYGUARD EC203, which lists ultrasonic and shock sensors, or the Viper Responder 350, which lists up to a quarter-mile range.
Our Top Picks
Best OverallCombines two-way security and remote start with a five-button LCD transmitter, a stated one-mile range, and four security channels.
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Longest Listed RangePairs a two-way LCD remote with remote start and security, and lists up to three miles of range plus a shock sensor and siren.
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Alarm and StarterIncludes two-way LCD alerts, remote start, a 3,000-foot range, a 105dB-plus siren, and a dual-stage shock sensor.
View on Amazon- LCD Alert Features Avital 5305L
- Sensor-Focused Alarm EASYGUARD EC203
Compare Two-Way Car Alarm Features
| # | Product | Compatible Devices | Buy |
|---|---|---|---|
| 1 | 1. Viper 5706VBest Overall | Security Systems, Remote Start Systems… | View on Amazon |
| 2 | 2. Compustar CS9920-ASLongest Listed Range | Vehicles | View on Amazon |
| 3 | 3. FIRSTEC CS2WQ900-ASAlarm and Starter | cars, trucks, motorcycles | View on Amazon |
| 4 | 4. Compustar CS8910-ALCD remote-start system shoppers | cars | View on Amazon |
| 5 | 5. Avital 5305LLCD Alert Features | Directed SmartStart Compatible Devices | View on Amazon |
| 6 | 6. EASYGUARD EC203Sensor-Focused Alarm | EASYGUARD cars of specified model (EC203) | View on Amazon |
| 7 | 7. Viper Responder 350Simple long-range security setup | Cars, Trucks | View on Amazon |
| 8 | 8. EASYGUARD EC206-BRechargeable pager for petrol cars | petrol vehicles | View on Amazon |
| 9 | 9. MAS TALFMProgrammable alarm and entry controls | Cars | View on Amazon |
| 10 | 10. Viper 3305VAlarm and keyless-entry buyers | cars | View on Amazon |
Detailed Reviews: Best 2 Way Car Alarm

#1 · Best Overall
1. Viper 5706V
- Compatible Devices: Security Systems, Remote Start Systems…
Best for: Long-range remote-start drivers.
Why it ranks #1: Combines two-way security and remote start with a five-button LCD transmitter, a stated one-mile range, and four security channels.
A stated one-mile range lets the Viper 5706V connect remote commands and security feedback across a substantial distance. Its five-button LCD transmitter pairs remote start with a four-channel security system, including door and trunk triggers, making it a fit for drivers who want both functions from one remote.
The LCD screen uses priority icons and text to make commands and vehicle information easier to interpret, while the five-button layout supplies dedicated controls. Viper lists a one-mile range, which supports operation from farther away than close-range parking situations. Remote start adds a convenience function, and door and trunk triggers cover key access points. The system is also listed as compatible with keyless-entry, trunk-pop, and SmartStart systems, though installation and vehicle-specific fit details are not provided here.
- Remote start and two-way security are combined
- Stated range reaches up to one mile
- Five-button LCD transmitter displays text and priority icons
- Four-channel system includes door and trunk triggers
- The supplied details do not specify vehicle-specific installation requirements.
Skip it if you want a stated ultrasonic sensor; EASYGUARD EC203 lists one, while the Viper 5706V details do not.
The Viper 5706V suits drivers who want remote start, a readable LCD remote, and security coverage for doors and trunk. Its one-mile range is a stated maximum, and buyers should account for vehicle-specific installation needs.
Full product details
| Brand | Viper |
|---|---|
| Compatible Devices | Security Systems, Remote Start Systems, Keyless Entry Systems, Trunk Pop Systems, SmartStart Compatible See more |
| Item Weight | 0.2 kg |
| Manufacturer | Viper |
| Model Number | 5706V |
| Warranty Description | 1-Year Manufacturer Warranty |
| Additional Information | Important information |
Listed on Amazon as: Viper 5706V 2-Way Car Security with Remote Start System
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#2 · Longest Listed Range
2. Compustar CS9920-AS
- Compatible Devices: Vehicles
Best for: Extended-range remote-start bundle.
Why it ranks #2: Pairs a two-way LCD remote with remote start and security, and lists up to three miles of range plus a shock sensor and siren.
A maximum stated range of three miles gives the Compustar CS9920-AS unusually broad remote reach within its listed feature set. The T11 two-way LCD remote handles commands and status checks, while a G17 two-way LED remote provides a second remote option alongside the included security components.
The T11 LCD remote supports long-distance locking, starting, and vehicle-status checks, so its screen-based feedback is useful when the car is out of sight. A G17 two-way LED remote offers another two-way interface. The package lists a control module, shock sensor, siren, and LED, connecting remote start with alarm hardware in one system. Three miles is the stated maximum range, and the supplied information does not specify vehicle-by-vehicle compatibility or installation requirements.
- Up to three miles of stated range
- T11 two-way LCD remote supports status checks
- G17 two-way LED remote is included
- Package includes control module, shock sensor, siren, and LED
- Vehicle-specific compatibility and installation requirements are not specified.
Skip it if you need stated compatibility details for a particular vehicle; Compustar CS8910-A lists cars, while CS9920-AS only says vehicles.
The CS9920-AS fits drivers seeking long-range remote start and two-way status feedback, with both LCD and LED remotes in the package. Its three-mile figure is a maximum, and the listing leaves vehicle-specific fit details open.
Full product details
| Brand | Compustar |
|---|---|
| Compatible Devices | Vehicles |
| Item Weight | 1.8 pounds |
| Manufacturer | Compustar |
| Model Number | CS9920-AS |
| Warranty Description | 1 Year Warranty |
Listed on Amazon as: Compustar All-in-One CS9920-AS 2-Way LCD Super Spectrum Alarm & Remote Starter Kit System (Up to 3-Mile Range)
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#3 · Alarm and Starter
3. FIRSTEC CS2WQ900-AS
- Compatible Devices: cars, trucks, motorcycles
Best for: LCD alerts with remote start.
Why it ranks #3: Includes two-way LCD alerts, remote start, a 3,000-foot range, a 105dB-plus siren, and a dual-stage shock sensor.
A 3,000-foot stated range pairs with an LCD remote that gives real-time visual confirmation of commands and security triggers. The FIRSTEC CS2WQ900-AS also combines remote start and keyless entry with a 105dB-plus siren and dual-stage shock sensor for buyers seeking an alarm-and-start bundle.
The LCD remote’s visual confirmations help distinguish a received command or security trigger, while the 3,000-foot range supports operation from farther away. A one-way backup remote provides an alternate control option. The dual-stage shock sensor and 105dB-plus siren add layered alarm response, and remote start and keyless entry cover convenience tasks. Compatibility is listed for cars, trucks, and motorcycles, although the supplied details do not state vehicle-specific installation requirements.
- LCD remote shows real-time command and security-trigger alerts
- Stated range up to 3,000 feet
- One-way backup remote included
- Remote start, keyless entry, dual-stage shock sensor, and siren
- The backup remote is one-way rather than two-way.
Skip it if you need a listed range beyond 3,000 feet; Compustar CS9920-AS specifies up to three miles for remote operation.
This bundle suits drivers of listed cars, trucks, or motorcycles who want LCD feedback, remote start, and layered shock-and-siren protection. Its stated range is 3,000 feet, and the backup remote is one-way.
Full product details
| Brand | FIRSTEC |
|---|---|
| Color | black |
| Compatible Devices | cars, trucks, motorcycles |
| Item Weight | 2.5 pounds |
| Manufacturer | FIRSTEC |
| Model Number | CS2WQ900-AS |
Listed on Amazon as: CS 2-Way LCD 3000' Alarm/Starter, Blade Ready
View on AmazonWhy it ranks #4: Its product title specifies a two-way LCD FM vehicle security and remote-start system, though the supplied listing provides few further details.
The Compustar CS8910-A combines a two-way LCD remote with vehicle security and remote start, placing feedback and engine-start control in one system. Its supplied listing identifies car compatibility, giving buyers a clearer vehicle category than a general-purpose listing, though it provides few further feature specifics.
A two-way LCD remote pairs with the listed remote-start function, giving the system a feedback-oriented control format alongside engine-start capability. Vehicle security is also part of the named system, so it combines these functions rather than presenting a standalone starter. The listing specifies compatibility with cars, but does not provide a range, sensor type, siren specification, or installation detail. Buyers should therefore weigh the core combined functions against the limited feature information supplied.
- Two-way LCD remote
- Remote-start function is included in the system description
- Vehicle security is included in the system description
- Compatibility is listed for cars
- The supplied listing does not state range or sensor specifications.
Skip it if you need a stated multi-mile range; Compustar CS9920-AS lists up to three miles, while CS8910-A gives no range figure.
This suits a car owner seeking a Compustar system that combines two-way LCD control, security, and remote start. The listing confirms car compatibility but leaves range, sensor details, and installation requirements unspecified.
Full product details
| Brand | Compustar |
|---|---|
| Compatible Devices | cars |
| Manufacturer | Compustar |
| Model Number | CS8910-A |
| Warranty Description | 1 Year Warranty |
Listed on Amazon as: Compustar CS8910-A 2-Way LCD FM Vehicle Security and Remote-Start System
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#5 · LCD Alert Features
5. Avital 5305L
- Compatible Devices: Directed SmartStart Compatible Devices
Best for: LCD alerts with zone identification.
Why it ranks #5: Offers a two-way backlit LCD remote with tone and vibration modes, event notifications, a dual-zone impact sensor, and a companion remote.
Zone ID notifications on the backlit two-way LCD remote help the Avital 5305L show where an event occurred, rather than offering only a general alert. Tone and vibration modes provide alternate notification styles, and the package includes remote start, keyless entry, and a one-way companion remote.
The dual-zone impact sensor and Zone ID notifications connect detection with more specific event feedback on the LCD remote. Tone and vibration modes let the owner choose how alerts arrive, while command confirmations provide feedback after remote use. A fault-proof starter interrupt, nuisance prevention, Warn Away, and Revenger siren contribute listed security functions. The included four-button companion remote handles one-way functions, and SmartStart compatibility is listed for compatible devices; the supplied information does not state a range.
- Backlit two-way LCD remote offers Zone ID notifications
- Tone and vibration alert modes
- Dual-zone impact sensor and fault-proof starter interrupt
- One-way companion remote included
- The supplied listing does not state a remote operating range.
Skip it if you need a stated long-distance operating range; Viper 5706V lists one mile, while Avital 5305L provides no range figure here.
This suits drivers who value event-zone information, selectable alert modes, and remote start with security features. The included companion remote is one-way, and buyers who need a documented operating range should note none is supplied.
Full product details
| Brand | Avital |
|---|---|
| Compatible Devices | Directed SmartStart Compatible Devices |
| Manufacturer | Avital |
Listed on Amazon as: Avital 5305L 2-Way Security System Responder Keyless Entry Remote Start w/ D2D with Gravity Magnet Phone Holder Bundle
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#6 · Sensor-Focused Alarm
6. EASYGUARD EC203
- Compatible Devices: EASYGUARD cars of specified model (EC203)
Best for: Ultrasonic and shock monitoring.
Why it ranks #6: Provides two-way LCD status feedback, an ultrasonic sensor, and a shock sensor; it does not include remote engine start.
An ultrasonic sensor joins the shock sensor in the EASYGUARD EC203, giving its two-way alarm more than one listed sensing approach. The LCD pager returns vehicle-status feedback, while keyless entry adds access convenience; this is an alarm system, not a remote engine-start kit.
The ultrasonic and shock sensors offer distinct listed inputs for detecting activity, with alerts and status feedback sent through the LCD pager. Keyless entry brings lock access into the same system, reducing the need to treat the alarm and entry functions separately. EASYGUARD states compatibility with most DC12V petrol and diesel vehicles, but also requires professional alarm-installer installation. That makes installation planning important, especially for owners seeking a straightforward self-installation process.
- Ultrasonic sensor is included
- Shock sensor adds another listed sensing function
- LCD pager provides two-way vehicle-status feedback
- Keyless entry is included
- Professional alarm-installer installation is required.
Skip it if you need remote engine start; the EC203 lacks it, while FIRSTEC CS2WQ900-AS lists remote start and keyless entry.
This is a fit for owners of DC12V petrol or diesel vehicles who value two-way alerts and both ultrasonic and shock sensing. It requires professional alarm installation and does not provide remote engine start.
Full product details
| Brand | EASYGUARD |
|---|---|
| Compatible Devices | EASYGUARD cars of specified model (EC203) |
| Manufacturer | ieasyguard.com |
| Model Number | EC203 |
Listed on Amazon as: EASYGUARD EC203 Universal Version 2 Way car Alarm System with keyless Entry & LCD Pager Display, ultrasonic Sensor & Shock Sensor DC12V
View on AmazonWhy it ranks #7: This two-way security system lists up to a quarter-mile range, clone-safe code-hopping, and two auxiliary outputs.
A stated range of up to one-quarter mile is the Viper Responder 350’s clearest practical feature, extending remote security operation beyond the immediate vicinity of the car. Its listed security functions include clone-safe code-hopping, two auxiliary outputs, and a bright blue status LED.
Clone-safe code-hopping is a named security feature, while the bright blue LED gives a visible status indicator at the vehicle. The system’s two auxiliary outputs offer additional control connections, and the quarter-mile maximum range defines its remote-use reach. Directed lists compatibility with cars and trucks. The supplied feature information focuses on security rather than remote start, so buyers who need engine-start capability should choose a system whose listing explicitly includes it.
- Up to one-quarter-mile stated range
- Clone-safe code-hopping security
- Two auxiliary outputs
- Bright blue LED status indicator
- Remote engine start is not listed among its supplied features.
Skip it if you want a remote-start system; Viper 5706V explicitly includes remote start, whereas the Responder 350 listing focuses on security.
The Responder 350 suits car and truck owners looking for two-way security, auxiliary outputs, and a visible status indicator. Its stated quarter-mile range is the key boundary, and remote engine start is not listed.
Full product details
| Brand | Directed |
|---|---|
| Compatible Devices | Cars, Trucks |
| Manufacturer | Viper |
| Model Number | 3305V |
| Warranty Description | 1-Year Manufacturer Warranty |
Listed on Amazon as: Viper Responder 350 2-Way Security System 3305V
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#8
8. EASYGUARD EC206-B
- Compatible Devices: petrol vehicles
Best for: Rechargeable pager for petrol cars.
Why it ranks #8: Its rechargeable LCD pager provides real-time feedback and vibration warnings, with keyless entry and trunk release; remote start is not included.
A rechargeable LCD pager gives the EASYGUARD EC206-B a practical edge for drivers who want feedback beyond the car: its two-way link reports vehicle status in real time. The system also combines shock warnings, keyless entry, and remote trunk release, while clearly omitting remote engine start.
The LCD pager and vibration warning let the driver receive alerts through the remote, while real-time monitoring supports checking vehicle status from a distance. Keyless entry and remote trunk release add everyday access functions alongside the alarm. EASYGUARD says it fits 95% of DC12V petrol vehicles, so it suits many petrol-car applications, but the stated compatibility does not extend to diesel vehicles. The fob needs about four hours of charging after receipt, a small setup step to account for.
- Two-way LCD pager provides real-time vehicle feedback
- Vibration warning and shock alarm alert the remote user
- Remote trunk release is included
- Keyless entry is included
- No remote engine-start function is included.
Skip it if you need remote engine start; the EC206-B does not provide it, while Viper 5706V includes a remote-start system.
This suits a petrol-car owner seeking remote alarm feedback, keyless entry, and trunk release in one system. Its stated fit covers most DC12V petrol vehicles, but buyers needing remote start or diesel compatibility should look elsewhere.
Full product details
| Brand | EASYGUARD |
|---|---|
| Compatible Devices | petrol vehicles |
| Manufacturer | ieasyguard.com |
| Model Number | EC206-B |
Listed on Amazon as: EASYGUARD EC206-B 2 Way car Alarm System with Rechargeable LCD Pager Vibration Alarm Warning Remote Trunk Release keyless Entry 868Mhz DC12V
View on AmazonWhy it ranks #9: Lists a two-way LCD remote, dual shock sensor, starter-kill relay, and programmable functions, but gives no remote range.
Sixteen programmable functions give the MAS TALFM room to tailor its two-way LCD alarm setup to different control preferences. Its listed features include door locking and unlocking, trunk release, a dual shock sensor, and a six-tone siren, alongside a regular one-way remote.
The LCD two-way remote and programmable functions support configurable alarm operation, while onboard relays handle door locking and unlocking. Door, trunk, and hood trigger inputs extend the listed trigger connections, and a trunk-release output adds access control. The dual shock sensor and six-tone siren provide the specified alert hardware. A valet switch and LED are also included; the supplied feature details do not establish vehicle-specific fit or installation steps, so those remain planning considerations.
- Sixteen programmable functions with LCD two-way remote
- Onboard relay for door locking and unlocking
- Trunk-release output and door, trunk, and hood trigger inputs
- Dual shock sensor and six-tone siren
- Vehicle-specific compatibility and installation requirements are not detailed.
Skip it if you need a listed remote-start function; Compustar CS8910-A includes remote start, while the MAS TALFM feature list does not.
This suits owners seeking configurable two-way alarm controls, multiple trigger inputs, and remote door and trunk functions. The listed hardware includes a dual shock sensor and siren, but the supplied details leave vehicle-specific fit and installation open.
Full product details
| Brand | MAS |
|---|---|
| Compatible Devices | Cars |
| Manufacturer | MAS |
| Model Number | TALFM |
Listed on Amazon as: MICRO 2 Way Car Alarm Vehicle Security System Pager LCD Remote Control Keyless Entry
View on AmazonWhy it ranks #10: This is a two-way alarm and keyless-entry system, not remote start; the listing also calls for professional installation.
A two-way LCD remote paired with a four-button one-way sidekick gives the Viper Responder 3305V two distinct ways to control its car alarm. Built-in keyless entry adds door access, while the listing clearly identifies this as an alarm system rather than a remote-start product.
The main LCD remote provides two-way operation, so it is the system’s feedback-focused controller, while the sidekick offers one-way commands as a simpler companion. Built-in keyless entry combines door access with alarm control. The product information calls for professional installation, which buyers should include in their planning. Because remote start is explicitly excluded, this is a better fit for security and entry needs than for drivers who want to start the engine remotely.
- Two-way LCD main remote
- Four-button one-way sidekick included
- Built-in keyless entry
- Professional installation requirement is stated
- This alarm and keyless-entry system does not include remote start.
Skip it if you need remote engine start; Compustar CS8910-A is listed as a remote-start system, while this Viper is not.
The Responder 3305V suits car owners seeking two-way alarm control and built-in keyless entry, with a simpler one-way sidekick included. It requires professional installation and does not provide remote engine start.
Full product details
| Brand | Viper Alarm |
|---|---|
| Compatible Devices | cars |
| Manufacturer | Viper Alarm |
Listed on Amazon as: Mobile 2 Way Car Pager Security System Responder LCD Keyless 3305V
View on AmazonAvoid the remote-start assumption
Do not assume that a two-way car alarm includes remote start; this lineup contains several alarm-only systems. The EASYGUARD EC206-B explicitly says it has no remote engine-start function, and the EASYGUARD EC203 also says remote start is not included. The Viper 3305V listing likewise identifies it as an alarm and keyless entry, not remote start.
By contrast, the Viper 5706V, Compustar CS9920-AS, FIRSTEC CS2WQ900-AS, Avital 5305L, and Compustar CS8910-A listings describe remote-start capability. This distinction affects more than convenience: a buyer choosing an alarm-only kit for a vehicle that needs remote start may have to select a different system.
Confirm the exact included functions and vehicle compatibility before ordering, rather than relying on the phrase two-way or on a remote’s LCD display to imply starting capability.
Check vehicle fit and installation before buying
Vehicle fit and installation requirements are not uniform across these alarm systems, so verify both before choosing a kit. EASYGUARD says the EC206-B fits 95% of 12-volt petrol vehicles, while the EC203 is described as suitable for most 12-volt petrol and diesel vehicles. However, the EC203 listing specifically says professional alarm-installer installation is required.
The Viper 3305V listing also calls for professional installation. Other products give broad compatible-device descriptions such as vehicles, cars, or cars and trucks, which do not establish compatibility with every make, model, or factory security setup.
The supplied information does not specify vehicle-by-vehicle fitment or all extra parts that might be needed. Treat broad fit claims as a starting point, then confirm compatibility and installation details for your particular vehicle before purchase.
How to Choose a Two-Way Car Alarm
Remote feedback and range
Choose a remote range that suits where you park, and check whether the remote provides readable status feedback. The listed range spans up to a quarter mile for the Viper Responder 350, 3,000 feet for the FIRSTEC CS2WQ900-AS, one mile for the Viper 5706V, and up to three miles for the Compustar CS9920-AS. Several listings provide no range figure, so do not assume an unspecified distance matches a stated one.
Remote styles also vary: the Viper 5706V and EASYGUARD systems list LCD displays, while Compustar CS9920-AS includes LCD and LED remotes. A longer stated range favors drivers parking farther away, while a nearer parking situation may make screen feedback and the listed functions more important than maximum distance.
Alarm-only or remote start
Decide whether you need the alarm to start the vehicle remotely, because that feature varies across the products. The Viper 5706V, Compustar CS9920-AS, FIRSTEC CS2WQ900-AS, Avital 5305L, and Compustar CS8910-A list remote-start capability. The EASYGUARD EC206-B and EC203 explicitly do not include remote start, and the Viper 3305V is described as alarm and keyless entry rather than remote start.
Other listings focus on security functions without making a clear remote-start claim. Choose a listed security-and-start system when both functions matter; if you only want two-way security or keyless entry, an alarm-only option may better match that use.
Verify what the package includes before purchasing.
Sensors and security components
Compare the sensors and security components included, since the listings describe different protection features. The FIRSTEC CS2WQ900-AS specifies a dual-stage shock sensor and a 105dB-plus siren; EASYGUARD EC203 lists both ultrasonic and shock sensors. The Avital 5305L includes a dual-zone impact sensor, fault-proof starter interrupt, nuisance prevention, and a Revenger siren.
Compustar CS9920-AS lists a shock sensor and siren, while the MAS TALFM package describes a dual shock sensor and starter-kill relay. These details favor different priorities: buyers seeking multiple sensing methods can look at the EC203, while those prioritizing a stated siren and layered shock response can compare FIRSTEC and Avital.
Check that the security features suit your vehicle and installation plan.
Which Two-Way Car Alarm Should You Choose?
Choose the Viper 5706V if you want a two-way LCD security system that also lists remote start and a one-mile range; it is the strongest all-around match in this set. For the longest stated range, the Compustar CS9920-AS lists up to three miles and includes LCD and LED remotes. The FIRSTEC CS2WQ900-AS suits shoppers wanting a 3,000-foot range, a dual-stage shock sensor, and a stated siren.
If remote start is unnecessary, the EASYGUARD EC203 adds ultrasonic and shock sensors, while the Viper Responder 350 lists up to a quarter-mile range. Pick the EASYGUARD EC206-B for its rechargeable LCD pager, vibration warning, and trunk release.
Confirm vehicle fit and installation needs before settling on any system.
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Frequently Asked Questions
Will a two-way alarm work with my vehicle’s existing factory security and keyless-entry system?
Compatibility depends on the vehicle and the alarm’s installation requirements. Check the product’s fit information and ask a qualified installer whether the system can work with your factory security and keyless entry without interfering with them. Confirm this before choosing a product, especially if you want to retain existing functions.
How can I confirm whether remote start requires extra parts or professional installation for my vehicle?
Confirm requirements using the alarm’s vehicle-specific fit information and an installer familiar with your vehicle. Ask whether remote start needs additional parts and whether installation must be performed professionally. The listed titles alone do not establish vehicle compatibility or all required components, so verify both before purchasing.
What should I do if the remote stops receiving alerts or loses connection with the alarm?
First check the remote’s power and follow the product instructions for restoring its connection or pairing. If alerts still do not arrive, consult the manual or contact the seller or installer for model-specific troubleshooting. Avoid assuming the vehicle is protected by two-way alerts until you confirm the remote communicates with the alarm.
Should I choose an alarm with remote start if I only want security alerts?
Not necessarily; prioritize the features you will use. The EASYGUARD EC203 lists ultrasonic and shock sensors, while the Viper Responder 350 lists two-way security and up to a quarter-mile range. If remote start matters, the Viper 5706V combines it with two-way security and a stated one-mile range.
Which listed system has the longest stated range?
The Compustar CS9920-AS lists a range of up to three miles and includes LCD and LED remotes. Range claims alone do not determine vehicle fit or installation needs, so check those before choosing. If other features matter more, compare the Viper 5706V’s stated one-mile range and the FIRSTEC system’s 3,000-foot range.
Final Words
For the strongest all-around match, choose the Viper 5706V if you want two-way security, remote start, an LCD transmitter, and a stated one-mile range. Consider the Compustar CS9920-AS for the longest stated range, or the EASYGUARD EC203 if remote start is unnecessary and its listed sensors suit your needs. Before deciding, confirm vehicle compatibility and installation requirements for your specific system.






