SMA-21-P17,5 | Sonitron 85dB Through Hole Continuous Internal Buzzer, 21 x 21 x 9.5mm, 1.5V dc Min, 15V dc Max | RS
SMA-13-P7.5 | Sonitron 75dB Through Hole Continuous Internal Buzzer, 13.9 x 13.9 x 6mm, 1.5V dc Min, 24V dc Max | RS
SMA-21LV-P15 | Sonitron 87dB SMD Continuous Internal Buzzer, 21 x 21 x 9.5mm, 2V dc Min, 6V dc Max | RS
![SMA-21-P15 | Sonitron Piezo Sound Generator Continuous 85dB 3.3kHz 24V -20 ... 70°C | Distrelec International SMA-21-P15 | Sonitron Piezo Sound Generator Continuous 85dB 3.3kHz 24V -20 ... 70°C | Distrelec International](https://media.distrelec.com/Web/WebShopImages/landscape_large/_t/if/sonitron-sma-21-l-p17-5.jpg)