SCE028MD2MP1B,BUZZ VDC 2KHZ MED PULSE
SCE028MD2SP1B,BUZZ VDC 2KHZ SLOW PULSE
SCE028MD2TT1B,BUZZER PIEZO 42.98MM PNL MNT
SCE028MD3CK1B,BUZZ VDC 2.9KHZ CLICK
SCE028MD3CK1S,BUZZER PIEZO 42.98MM PNL MNT
SCE028MD3CM1B,音频指示器及警报器 CHIME 16-28VDC, 3KHZ, MED
SCE028MD3CM1S,BUZZER PIEZO 42.85MM PNL MNT
SCE028MD3CTB,BUZZER 16-28VDC 2.9KHZ PANEL
