DEI 508D DUAL ZONE RADAR MOTION SENSOR VIPER CLIFFORDBRAND NEW DEI 508D DEI 508D DUAL ZONE RADAR MOTION SENSOR VIPER CLIFFORD KEY FEATURES: The DEI 508D is the most effective vehicle intrusion sensor. This dual zone radar sensor detects moving high density objects using RF field disturbance technology. Ideal for convertibles & t tops or any application where zone intrusion protection is desired. Contains a new custom chip for outstanding stability. This is a great way to give you vehicle that added