Catalogue Lion King Sirens
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TAIZHOU LION KING SIGNAL CO., LTD.
http:// www.lksos.com e-mail: lk@lksos.com
TAIZHOU LION KING SIGNAL CO., LTD.
http:// www.lksos.com e-mail: lk@lksos.com
Electromechanical Sirens Are Widely Used All Over the World
Decibel dB(1m)-measurement of sound output
The sound level can be measured but no precise indication exists for the range of the sound. Too many unknown factors affect this value: type of sound, speed and direction of the wind, humidity, fog, rain etc.
The data shown in the following table are useful as theoretical indication.
The Range Of Sound (theoretical)
Distance
M
dB(A)
1
65
70
75
80
85
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132 134
136
2
59
64
69
74
79
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126 128
130
3
55
60
65
70
75
80
82
84
96
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122 124
126
5
51
56
61
66
71
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118 120
122
10
45
50
55
60
65
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112114
116
20
39
44
49
54
59
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106 108
110
30
35
40
45
50
55
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102 104
106
50
=
36
41
46
51
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98 100
102
100
=
=
40
45
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92 94
96
200
=
39
44
48
46
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86 88
90
300
=
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82 84
86
500
=
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78 80
82
1000
=
=
=
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72 74
76
2000
=
=
=
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66 68
70
3000
=
=
38
40
42
44
46
48
50
52
54
56
58
60
62 64
66
5000
=
=
38
40
42
44
46
48
50
52
54
56
58 60
62
EL
lion king signal
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