RS PRO Panel Mount Buzzer, 12 V dc, IP40, DC

The buzzer's housing is made of polycarbonate material, which offers a good level of strength and resistance to wear, so it will last for a long time. This product also has an IP40 (Ingress Protection) rating, meaning it's protected from wires and small tools greater than 1 millimetre.

A buzzer like this one is often used on aircraft and boat instrument panels. It has been stringently tested for quality and safety by engineers.