Model HP-905 Compact family - Single, Dual, Triple and Quad Sensors; offer the smallest and most effective laser defense system available. Sensors are 30% to 50% smaller than the competition; hybrid design with ultra-sensitive detection circuits and powerful laser diodes assures reliable and effective performance. Switchable modes; parking assist, detection only and stealth (jamming). Real voice alerts, waterproof aluminum housing, one to four sensors per CPU, free firmware/software upgrades and 2 year warranty. Contact us at 1-800-984-5305 or at This email address is being protected from spambots. You need JavaScript enabled to view it.