The Apollo 45681-290APO is an integrated base sounder with a slow whoop and short circuit isolator. The 45681-290APO is made up of a base sounder, isolator and integral mounting base. The 45681-390APO Integrated Base Sounder is designed for indoor use.
Features Choice of two tones Choice of two volume ranges 55-75 dB(A) and 75 – 91 dB(A) An emergency signal tone to DIN 33404 Part 3 and discretionary constant tone for non-fire emergency use. Individual and group addressing Synchronisation of DIN and constant tones Unique acoustic self-test Without built-in isolator With slow whoop tone to Dutch standard NEN2575
