<B>Roomba iRobot 500/600/700 Series Cliff Sensor / Bumper Sensor Assembly Review</b><P>http://tinyurl.com/mzg5eut <P><P> Roomba iRobot 500/600/700 Series Cliff Sensor / Bumper Sensor Assembly <P>Fixes 9-beep error & infamous 'circle dance'<P>Replacement set is ready to install - no soldering required!<P>
