Amazon Resale has the used, like new Uniden R8 Extreme Long-Range Radar / Laser Detector for $693 - 30% off automatically at checkout = $485 with free shipping. Detects threats from all four directions, with voice alerts for the direction of the threat.

• The Uniden R8W is $538 after the 30% coupon as well. 
• Uniden R7 Extreme is $362 after coupon. 
• Uniden R4 Extreme is $268 after coupon.