SC648APR,AUD SIG DEVICE AC/DC PANEL
SC648AR,音频指示器及警报器 CONSTANT, 10-48VAC MED, CUL APPRVD
SC648CPN,音频指示器及警报器 CHIME, 10-48VDC 2900HZ, LOUD
SC648CPNR,音频指示器及警报器 CHIME, 10-48VDC 2900HZ, LOUD
SC648D,AUD SIG DEVICE 10-48VDC PNL MNT
SC648DR,AUD SIG DEVICE 10-48VDC PNL MNT
SC648H,AUD SIG DEVICE 10-48VDC PNL MNT
SC648HR,AUD SIG DEVICE 10-48VDC PNL MNT
