SC648AHR,BUZZER 10-48VDC 4.5KHZ PANEL
SC648AJ,AUD SIG DEVICE 10-48VAC/DC PANEL
SC648AJR,AUD SIG DEVICE 10-48VAC/DC PANEL
SC648AK,音频指示器及警报器 SHORT PULSE, 10-48V 2900HZ, MEDIUM
SC648AKR,BUZZER PIEZO 42.98MM PNL MNT
SC648AN,AUD SIG DEVICE 10-48VAC/DC PANEL
SC648ANJ,AUD SIG DEVICE 10-48VAC/DC PANEL
SC648ANJR,AUD SIG DEVICE 10-48VAC/DC PANEL
