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 turnedon and off from the "switching" section of the Siren Marine App. It can also be mapped to specificinputs (such as a motion sensor) in the app and programmed to turn on automatically.Features:Automatically adjusts to a supply voltage range of 12-80VWaterproof housing with epoxy embedded electronicsWiring is required to any 12V-80V DC power sourceEasy-to-install universal mounting bracket with slotted holesWorks with MTC and Siren 3 ProSpecifications:Material: Heavy-duty plastic housingWaterproof: YesVoltage: 12V-80VPower: 10WCurrent: 0.5ALength: 3.9 in (including bracket)Width: 1.5 inHeight: 2.57 inVolume: 105 +/- 3dB