||The recalled Visonic Amber Personal Emergency Response System (PERS) kit enables a user to push a button on a pendant to signal a request for assistance. An Amber kit consists of one wireless pendant worn by the user, one Amber brand base station, generally connected to a phone line, a power supply and backup battery. Base stations are white, rectangular and measure about 9-inches wide by 7-inches deep by 2-inches high with emergency, call and check buttons. The emergency button is red on the Classic model and grey on the SelectX model. Recalled Classic models have catalog number 0-7425 and serial numbers 0408044281 through 4410052723. The first four digits of the serial number are manufacture dates from January 2008 through August 2010 in WWYY format. Recalled SelectX models have catalog number 0-100729 and serial numbers 2308600299 through 3013079617 The first four digits represent manufacture dates June 2008 through July 2013 in WWYY format. The first two digits are week of manufacturer and the second two numbers are the year of manufacture. For example serial number 2308 600299 indicates a manufacturing date of the 23rd week of 2008 or roughly June 2008. Each unit has an external label on the back of the base station, with the product name and serial number. Only Amber Classic or SelectX base stations that are placed in Common Area Mode by a professionally trained PERS system installer and are used without additional base stations, are included in the recall.