音频指示器及警报器 CONSTANT/SLOW PULSE 6-16VDC, 2 NEGS
压电 指示灯，内部驱动 2 ~ 12mA 2.9kHz 68dB @ 6V，61cm 面板安装 螺纹端子，快速连接片 - 0.250"（6.35mm）
得捷:
BUZZER PIEZO 42.85MM PNL MNT
贸泽:
压电蜂鸣器和音频指示器 CONSTANT/SLOW PULSE 6-16VDC, 2 NEGS
艾睿:
Audio Indicator Piezo 6VDC 16VDC 12mA 68dBA 2400Hz to 3400Hz Panel Mount Bulk
Allied Electronics:
Alarm, Dual, Continuous/Slow Pulse, 6-16VDC, 2-12mA, 68-80dBA at 2ft., Panel Mnt
Electro Sonic:
Audio 6VDC 16VDC 12mA 68dBA 2400Hz to 3400Hz Panel Mount