The Z-31RW Laser-Radar Detector features a built-in GPS which means it will alert to red light and speed camera locations in the U.S. and Canada. The internal database can be updated via the included USB cable. The Z-31RW is also bilingual so you can select from English or Spanish to receive voice and text alerts. This high performance detector offers the newest technology to combat false alerts including our Traffic Flow Signal Rejection and Field Disturbance Sensor Rejection. These are fancy names but simply put, they recognize alerts coming from sources other than police speed radar. Whistler Z-31RW Premium Laser Radar Dectector
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