Red base sounder with integrated isolator for Aritech™ analogical panels. Can be installed as the base of a detector of the 2000 series or simply as a sounder for what is required the AS2368CAP-R cover. Various tones The entire 2000 series works on 2 wires and is wired directly to the bus without the need for external power. Certificates: CE and CPR (EN54 part 3).