SCE120XA2DP2B,BUZZ VAC 2KHZ FAST DBL PULS
SCE120XA2DP3B,BUZZ VAC 2KHZ SLOW DBL PULS
SCE120XA2FP1B,BUZZ VAC 2KHZ FAST PULSE
SCE120XA2MP1B,BUZZ VAC 2KHZ MED PULSE
SCE120XA2SP1B,BUZZ VAC 2KHZ SLOW PULSE
SCE120XA3CTB,BUZZER 48-120VAC/DC 2.9KHZ PANEL
SCE120XA3DL1B,BUZZ VAC 2.9KHZ 10S DELAY ON
SCE120XA3DP2B,音频指示器及警报器 FAST DBL PULSE 30-120V, 3KHZ, XLOUD