SC250H,音频指示器及警报器 CONSTANT, 60-250V 4500HZ, MEDIUM
SC250HJ,音频指示器及警报器 SLOW PULSE, 60-250V 4500HZ, MEDIUM
SC250HJR,音频指示器及警报器 SLOW PULSE, 60-250V 4500HZ, MEDIUM
SC250HP,音频指示器及警报器 FAST PULSE, 60-250V 4500HZ, MEDIUM
SC250HPR,BUZZER 60-250VDC/AC 4.5KHZ PANEL
SC250HR,BUZZER 60-250VDC/AC 4.5KHZ PANEL
SC250J,音频指示器及警报器 SLOW PULSE, 60-250V 2900HZ, MEDIUM
SC250JR,BUZZER 60-250VDC/AC 2.9KHZ PANEL
