The Z11R+ features Whistler's FDSR (Field Disturbance Sensor Rejection), the most recent advancement to combat new vehicles equipped with Frequency-Modulated Continuous Wave (FMCW) K band blind spot and collision avoidance devices. These devices clutter nearly all of K band causing a normal radar detector to alert continuously. Product Features:High PerformanceIcon DisplayTotal Laser DetectionTraffic Flow Signal Rejection (TFSR)Field Disturbance Sensor Rejection (FDSR)Product might not be available in all states due to local laws.
