Best 2 Way Car Alarm System for Two-Way Alerts and Remote Start

#1 · Best Overall

1. Compustar CS9920-AS

• Compatible Devices: Vehicles
• Warranty Description: 1 Year Warranty
• Weight: 1.8 lb

Best for: Maximum-range remote starters.

Why it ranks #1: Combines security and remote start, lists up to 3 miles of range, and includes a two-way LCD remote, LED remote, shock sensor, and siren.

Up to three miles of stated range makes the Compustar CS9920-AS a compelling fit for drivers who need remote access from a substantial distance. Its bundle combines the T11 two-way LCD remote and G17 two-way LED remote with security and remote start, bringing two styles of status communication into one kit.

The T11 LCD remote can lock doors, start the engine, and check vehicle status at the listed distance, supporting control and feedback when the car is far away. A G17 two-way LED remote supplies a second remote option. The included CM900-AS control module, shock sensor, siren, and LED form the stated security package, so buyers get named alarm components alongside remote start rather than a remote-only kit.

Skip it if you only need a 3,000-foot range and want a listed 105dB-plus siren; FIRSTEC CS2WQ900-AS specifies both.

Choose the CS9920-AS if long-distance locking, starting, and status checks are central to your routine and you value two two-way remotes. Treat three miles as the listed maximum when judging your operating needs.

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)

#2 · Long-Range Alternative

2. Viper 5706V

• Compatible Devices: Security Systems, Remote Start Systems…
• Warranty Description: 1-Year Manufacturer Warranty
• Weight: 0.2 kg

Best for: Long-range remote-start drivers.

Why it ranks #2: Pairs two-way security with remote start and a stated one-mile range; its LCD transmitter displays priority icons and text.

A stated one-mile range is the Viper 5706V's defining practical feature, extending the distance from which its two-way remote can command and monitor the vehicle. The system combines security and remote start with a five-button LCD transmitter, priority icons, and text on its display for communicating commands and vehicle information.

The five-button LCD transmitter uses priority icons and text to make command selection and feedback easier to distinguish, while the stated one-mile range supports operation from farther away than shorter-range systems. Four security channels cover the listed system architecture, and door and trunk triggers add specific entry-point monitoring. Remote start is integrated with security, so buyers seeking both functions can operate them through the same system; SmartStart compatibility is also listed.

Skip it if you need the listed maximum reach of three miles; Compustar CS9920-AS specifies up to three miles.

The Viper 5706V fits drivers wanting an integrated security and remote-start system with LCD feedback and door and trunk triggers. Its one-mile range is the practical boundary for buyers comparing remote reach.

Listed on Amazon as: Viper 5706V 2-Way Car Security with Remote Start System

#3 · Included Siren

3. FIRSTEC CS2WQ900-AS

• Compatible Devices: cars, trucks, motorcycles
• Weight: 2.5 lb

Best for: Siren-and-sensor protection.

Why it ranks #3: Offers a two-way LCD remote, up to 3,000 feet of range, a 105dB+ siren, dual-stage shock sensor, remote start, and keyless entry.

A 105dB-plus siren and dual-stage shock sensor give the FIRSTEC CS2WQ900-AS a clearly specified alarm-protection focus. Its two-way LCD remote reports commands and security triggers, and the listed 3,000-foot range plus a one-way backup remote offer primary and secondary control options for compatible vehicles.

Real-time visual alerts on the LCD remote help confirm commands and show security triggers, while the dual-stage shock sensor provides layered impact detection with the included 105dB-plus siren. Remote start and keyless entry bring vehicle access and starting into the same system. The main remote's stated 3,000-foot range sets its operating reach, and the included one-way backup provides another remote option; compatibility is listed for cars, trucks, and motorcycles.

Skip it if you need a stated range of up to three miles; Compustar CS9920-AS lists that maximum.

This FIRSTEC bundle suits owners of listed cars, trucks, or motorcycles seeking remote start alongside a loud siren and staged shock sensing. Its 3,000-foot range is the relevant limit for longer-distance control.

Listed on Amazon as: CS 2-Way LCD 3000' Alarm/Starter, Blade Ready

#4 · Turbo Timer Mode

4. EASYGUARD EC201-M9

• Compatible Devices: Petrol Cars

Best for: Petrol-car remote starters.

Why it ranks #4: Adds remote engine start and stop, timer start, turbo timer mode, and shock warnings; its LCD pager range is listed up to 800 meters in open space.

A 1.73-inch LCD pager pairs with remote engine starting, giving drivers both a larger screen for vehicle feedback and a way to start the engine remotely. The EASYGUARD EC201-M9 also adds a shock warning and turbo timer mode, bringing status checks and engine-related functions together in one alarm system.

The pager monitors vehicle status and provides real-time feedback, while the stated remote range reaches up to 800 meters in open space. Remote engine start and stop can help when you want to prepare the car before getting in; timer start adds another starting option. Turbo timer mode is intended to prolong engine lifespan. The system is specified for most DC12V petrol cars, not diesel cars, so vehicle fuel type is a key fit boundary.

Skip it if you drive a diesel car; the listing specifies petrol compatibility, so this system is outside its stated fit.

Choose the EC201-M9 if you drive a compatible DC12V petrol car and want pager feedback alongside remote start and turbo timer mode. Its stated fuel-type boundary rules it out for diesel vehicles.

Listed on Amazon as: EASYGUARD EC201-M9 2 Way Car Alarm System with 1.73 inch Big LCD Pager Display Remote Starter Turbo Timer Mode Shock Warning DC12V

#5 · Detailed Alarm Features

5. Avital 5305L

• Compatible Devices: Directed SmartStart Compatible Devices

Best for: Zone-alert security-system users.

Why it ranks #5: Includes a two-way backlit LCD remote, dual-zone impact sensor, starter interrupt, nuisance prevention, warn-away, and a Revenger siren.

Zone ID command confirmations and event notifications give the Avital 5305L LCD remote a specific way to communicate security activity. Its backlit four-button two-way remote also offers tone and vibration modes, while a companion one-way remote and Directed SmartStart compatibility broaden the listed control options.

Zone ID notifications help distinguish security events on the LCD remote, and its backlight supports viewing the display in dim conditions; tone and vibration modes provide different alert styles. A dual-zone impact sensor, Warn Away, nuisance prevention, fault-proof starter interrupt, and Revenger siren make up the listed security features. The included one-way four-button companion remote adds a second control device, and Directed SmartStart compatibility is listed for supported devices.

Skip it if you need a stated remote range; Viper 5706V lists a one-mile range for its two-way security and remote-start system.

The 5305L suits buyers who value zone-specific alerts, multiple remote notification modes, and a companion remote. Its listing names SmartStart compatibility but gives no range figure, a key boundary for distance-focused buyers.

Listed on Amazon as: Avital 5305L 2-Way Security System Responder Keyless Entry Remote Start w/ D2D with Gravity Magnet Phone Holder Bundle

#6

6. Avital 3308L

• Compatible Devices: Car
• Warranty Description: 1 year
• Weight: 1.6 lb

Best for: SmartStart-compatible security.

Why it ranks #6: Provides two-way LCD command confirmation, a one-quarter-mile listed range, starter interrupt, impact sensor, six-tone siren, and a companion remote.

SmartStart-Pro compatibility distinguishes the Avital 3308L for buyers using Directed by VOXX's listed connected platform. It pairs a two-way LCD command-confirming remote with a one-way four-button transmitter, while starter interrupt, impact sensing, and a six-tone siren add specified security functions for vehicle use.

The two-way LCD remote confirms commands and has a stated range of up to a quarter mile, giving users visual feedback while away from the vehicle. A separate one-way four-button transmitter adds another control option. The feature set includes starter interrupt, impact sensor, panic car locator, and flashing parking lights, while remote keyless entry, ignition-controlled door locks, and two auxiliary outputs broaden its listed functions. An integrated valet switch and LED are included at the antenna.

Skip it if you need a one-mile range; Viper 5706V lists that reach alongside an LCD remote-start system.

The 3308L fits drivers seeking two-way command confirmation, a backup one-way remote, and SmartStart-Pro compatibility. Its stated quarter-mile range and listed security functions are key considerations when choosing it for your vehicle.

Listed on Amazon as: Avital 3308L 2-Way LCD Vehicle Security System with 2 Remotes (Compatible with Directed by VOXX SmartStart-Pro)

#7

7. Viper Responder 350

• Compatible Devices: Cars, Trucks
• Warranty Description: 1-Year Manufacturer Warranty

Best for: Code-hopping security users.

Why it ranks #7: Supplies two-way security with up to one-quarter-mile range, clone-safe code-hopping, two auxiliary outputs, and a blue status indicator.

Clone-Safe Code-Hopping is the Viper Responder 350's clearest differentiator, offering a security-focused feature alongside two-way operation. Its listed range reaches up to a quarter mile, while a bright blue LED status indicator provides a visible status cue. Two auxiliary outputs extend the system's listed control options beyond its core security functions.

A range of up to a quarter mile gives the remote a stated operating distance for controlling the system, while Clone-Safe Code-Hopping is the named security feature for buyers prioritizing coded operation. The bright blue LED makes status visible at the system, and two auxiliary outputs provide additional control connections. The listing specifies compatibility with cars and trucks, making this a fit to consider across those vehicle types; it does not provide further installation details.

Skip it if you need a stated range beyond a quarter mile; Viper's 5706V lists a one-mile range.

The Responder 350 suits car or truck owners who want a two-way security system with code-hopping and auxiliary outputs. Its stated quarter-mile range is the relevant boundary if remote operation from farther away matters.

Listed on Amazon as: Viper Responder 350 2-Way Security System 3305V

#8

8. Compustar CS8910-A

• Compatible Devices: cars
• Warranty Description: 1 Year Warranty

Best for: Compustar LCD remote-start buyers.

Why it ranks #8: The listing identifies it as a two-way LCD FM vehicle security and remote-start system, but provides no range or included-component details.

The Compustar CS8910-A combines a two-way LCD system with FM vehicle security and remote start, making it a straightforward option for buyers seeking those named functions together. Its product information identifies the system and car compatibility, but does not specify a remote range or detail the included security components.

The two-way LCD designation signals a remote system intended to provide communication in both directions, while the listed remote-start function adds engine starting to vehicle security. FM is part of the product's named system type, and car compatibility is the stated vehicle fit. The listing provides no range figure or component breakdown, so buyers comparing remote reach or looking for named sensors and sirens have less specification detail here than on more fully described kits.

Skip it if you need a listed range and named siren or sensor; FIRSTEC CS2WQ900-AS specifies 3,000 feet and both.

Consider the CS8910-A if you want a Compustar system identified as two-way LCD, FM security, and remote start for a car. The sparse specifications leave range and component details as important decision boundaries.

Listed on Amazon as: Compustar CS8910-A 2-Way LCD FM Vehicle Security and Remote-Start System

#9

9. EASYGUARD EC206-B

• Compatible Devices: petrol vehicles

Best for: Rechargeable-pager alarm users.

Why it ranks #9: Provides two-way LCD monitoring, a rechargeable pager, vibration alerts, trunk release, and keyless entry, but explicitly lacks remote engine start.

A rechargeable LCD pager gives the EASYGUARD EC206-B a distinct advantage for buyers who want two-way vehicle feedback without a remote-start function. The pager reports vehicle status, while vibration warning, remote trunk release, and keyless entry add separate security and access controls for compatible DC12V petrol vehicles.

The two-way LCD pager provides real-time monitoring, and its rechargeable design means the key fob can be recharged rather than treated as a disposable control. A vibration sensor warning can alert the user to disturbance, while remote trunk release and keyless entry cover access tasks. The product is listed for 95% of DC12V petrol vehicles, but explicitly has no remote engine start; recharge the fob for around four hours after receipt as directed in the product information.

Skip it if you want remote engine starting; EASYGUARD's EC201-M9 adds that function and is specified for petrol cars.

Pick the EC206-B for a compatible DC12V petrol vehicle when pager monitoring, vibration alerts, trunk release, and keyless entry matter more than remote starting. Account for the rechargeable fob and its stated four-hour initial recharge guidance.

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

#10

10. EASYGUARD EC204

• Compatible Devices: Cars, Motorcycles (Petrol)
• Weight: 2.9 lb

Best for: Approach-and-walk-away entry.

Why it ranks #10: Offers two-way LCD monitoring and passive keyless entry, but has no remote start and is not compatible with vans, trucks, or non-12V vehicles.

Passive keyless entry automatically locks or unlocks the EASYGUARD EC204 when its key fob approaches or moves away within the stated three-to-six-foot zone. A rechargeable LCD pager adds two-way vehicle feedback, while remote trunk release and shock warning provide additional access and alarm functions without remote engine starting.

The PKE feature can lock or unlock doors as the fob approaches or leaves the car, reducing the need to operate entry manually within its stated three-to-six-foot range. The LCD pager provides real-time vehicle feedback, and the shock warning adds a separate alert function. Remote trunk release covers another access task. The kit is listed for most DC12V cars, but not vans, trucks, or other non-DC12V vehicles; remote engine start is not included.

Skip it if you drive a van or truck, or need remote starting; EASYGUARD EC201-M9 offers remote start for petrol cars.

Choose the EC204 if automatic approach-and-walk-away locking, pager feedback, and trunk release suit your routine. Its stated fit excludes vans and trucks, and it does not provide remote engine starting.

Listed on Amazon as: EASYGUARD EC204 2 Way car Alarm System with PKE Passive keyless Entry, Rechargeable LCD Pager Display & Remote Trunk Release, Shock Warning DC12V