Siren Marine Audible AlarmThe Siren Marine audible alarm produces a powerful beeping sound (105 decibels). The alarm can be connected to one of the outputs on the MTC, which will allow it to be turned on and off from the "switching" section of the Siren Marine App. It can also be mapped to specific inputs (such as a motion sensor) in the app and programmed to turn on automatically.Features: Automatically adjusts to a supply voltage range of 12-80V Waterproof housing with epoxy embedded electronics Wiring is required to any 12V-80V DC power source Easy-to-install universal mounting bracket with slotted holes Works with MTC and Siren 3 Pro Specifications: Material: Heavy-duty plastic housing Waterproof: Yes Voltage: 12V-80V Power: 10W Current: 0.5A Length: 3.9 in (including bracket) Width: 1.5 in Height: 2.57 in Volume: 105 +/- 3dB .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }