As one of its daily deals, Groupon offers the factory-refurbished Escort Passport 8500 X50 Red Radar / Laser Detector for $179.99 with free shipping. That's $113 under the lowest total price we could find for a new unit. It detects all US radar and laser bands and features AutoMute and brightness control. It comes with a quick-release windshield mount, coiled SmartCord, and case. A 6-month Escort warranty is included. Deal ends May 20.