This RS PRO electronic sounder is an efficient audible alarm suitable for marine, light industrial, and commercial applications. It emits a loud 112-decibel signal, ensuring it can be heard clearly over background noise, and alerting workers to emergencies and system failures that visual signals might miss. With 32 selectable tones, you can choose the one that best fits your workspace environment. The bright orange thermoplastic housing makes it easily visible, allowing for quick deactivation when conditions are safe again.