Protect your vehicle with an invisible sensing field which detects moving high-density objects (including people) near your car using Radio Frequency (RF) field disturbance technology. Ideal for convertibles, or any application where zone-intrusion protection is desired. Violation of the outer field can provoke siren chirps (or a WarnAway™ message from an optional voice module) while intrusion into the inner zone will trigger the system’s siren.

Invisible Zone Protection

The 508D creates an invisible sensing field around the vehicle to help detect movement nearby.

RF Field Disturbance Technology

Using Radio Frequency field disturbance technology, the 508D detects moving high-density objects, including people, near the vehicle.

Dual-Zone Response

The outer field can trigger siren chirps or a Warn Away response, while intrusion into the inner zone can trigger the full alarm.

Ideal for Convertibles

The 508D is a strong option for convertibles or applications where zone-intrusion protection is needed.

Added Perimeter Awareness

By monitoring activity around the vehicle, the 508D adds another layer of protection beyond standard impact-based sensors.