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ONE-TONE PIEZO BUZZER
Piezo-ceramic buzzer PK21N30WQ, 24x9.5mm, 80dB, 3.0kHz, is used in access control systems for acoustic signaling of door release. |
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KPE-1500
Piezo Siren is used in access control system for acoustic signaling – alarm in case of forced entry, 6-14 VDC, 2-3.5kHz, 102 dB, 47x39x23 mm
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