Avital 3100LX Security System (W/O Siren) - Basic 3-Channel Alarm

In this review of the Avital 3100LX Security System the bottom line is simple: it is a solid, no-frills 3-channel keyless entry alarm for owners who want dependable basic protection and remote control without a built-in siren. The reviewer found it especially appealing to DIY installers and hobbyists because of the straightforward wiring and clear documentation; when fitted correctly the unit provides reliable locking and remote functions. This review highlights the practical tradeoffs, including mixed reports about lock behavior and the need to supply a separate relay for dome light supervision.

Key Features

• 3-Channel System: Provides three channels of control that let you manage locks and auxiliary functions from the supplied remotes.
• Bright Red LED Status Indicator: Offers a visible armed/diagnostic indicator that helps confirm status at a glance.
• Includes Two 3-Button Transmitters: Two compact remotes are included so both driver and secondary user have remote access out of the box.
• Keyless Entry: Delivers simple remote locking and unlocking for vehicles without factory keyless systems or to augment existing systems.
• Dome Light Supervision (relay required): Allows the dome light to be controlled by the alarm, but requires a separate relay for proper installation.

Who It's For

The Avital 3100LX is best for owners who want a basic, value-minded alarm and have some experience with vehicle wiring or prefer a DIY approach. Its simplicity and included remotes make it well suited to older vehicles or secondary cars where full dealer alarm features are unnecessary.

It may not be the best choice for buyers who need an integrated siren, advanced immobilization, or plug-and-play solutions for complex factory wiring. Also, customers who expect flawless door lock adaptations in every vehicle should be prepared for occasional trim-specific tuning or professional assistance.

Pros & Cons

Pros

• Reliable basic alarm and remote control when installed properly and wired correctly.
• Easy installation for competent DIYers, with simple wiring that many customers reported handling themselves.
• Good value with two 3-button transmitters and visible status via the bright red LED.

Cons

• Does not include a siren, which must be added separately if audible alarm notification is desired.
• Lock functionality receives mixed feedback and may require extra wiring adjustments or troubleshooting in some vehicles.

Specifications

Our Verdict

The Avital 3100LX is a practical, affordable alarm for drivers who want straightforward remote control and basic anti-theft functions without paying for extras. It represents good value for DIY installers and fleet owners who can supply a separate siren or relay when needed. Buyers who need guaranteed plug-and-play lock integration or a built-in siren should consider other models.

Frequently Asked Questions

Does the kit include a siren?
No, the Avital 3100LX is sold without a siren, so an external siren must be added for audible alerts.

Are the remotes included?
Yes, two 3-button transmitters are included so two users can control the system immediately.

Is dome light supervision ready out of the box?
Dome light supervision is supported but requires a separate relay to be installed for proper operation.