Eaton's DB3B is a high power, explosion-proof sounder certified for use in a wide range of temperatures. It comes with a range of pre-recorded tones and can produce 125dM at 1m.
The DB3B can be controlled by reversing the polarity of the power supply (two-stage) or by providing a common negative supply and switching between multiple positive ones. It can also be controlled by a common positive supply and switching between negative ones.
Click the file icon to view the file online, or right-click on the file icon and select "Save Target As..." to download the file to disk for later viewing.