The Automotive Directory Featured Sites Used Cars Used car listings and dealerships across the country, as well as informative articles for the used car buyer and seller. Listings Astro Products - offers police and sports radar guns. Attowave Company - manufactures radar and laser detector products. Autotronics International Corp. - sells radar detectors/laser jammers. K40 Electronics - Manufacturer of remote police radar detection systems, laser detection devices and CB radios/antennas. Lidatek - offering Laser Echo, defense against laser speed guns. Redline - maker of The Eliminator, which protects you from photo radar. Valentine Research - designs, manufactures, and sells the Valentine One Radar Locator, the radar and laser detector that locates threats.