Patrol sounders Audio-Number Description Graphic Audio Sample 2 : EN54-3 Sawtooth, DIN tone 33404-3 Germany (emergency signal), PFEER PTAP 9 Slow whoop, fire alarm, UK BS 5839-1 11 Interrupted tone (fast) [...] 8201 (emergency evacuation signal), USA (evacuation alarm) 112 Interrupted tone, ISO 8201 (emergency evacuation signal) 113 Interrupted tone, ISO 8201 (emergency evacuation signal), sweeping 115 Interrupted [...] 54 Continuous tone, Finland (all-clear signal) 55 Continuous tone, PFEER gasalarm 56 Continuous tone 57 Continuous tone, UK BS 5839-1 59 Continuous tone 60 : EN54-3 Continuous tone 61 Continuous tone 63