53 Continuous tone 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 [...] 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) [...] Sweden SS 031711 (local warning) 103 interrupted tone, Sweden SS 031711 (air raid warning) 104 : EN54-3 Interupted tone, Sweden SS 031711 (emergency signal) 107 Interrupted tone, Germany KTA 3901 (evacuation