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Buzzer 24v 90db dispositif sonore sirene 24vcc alarme bip sfm-27 3v 4.5v 6v 9v 12v

SFM-27 DC 3-24V 90DB Buzzer Aktif Buzzer Yüksek Beep Ses Üreteci Yüksek Desibel Alarm Uyarıcı Acil Tehlike Güvenlik Sistemi

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WEICHUANG 3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM-27-W : Electronics