Features:

• Signal in U/W and Surface.
• Volume: Approx. U/W : 115-125 dB. Surface : 125-130 dB.
• It's very loud keep away from your ears.
• Clean in fresh water after use.
• Easy to activate red Horn Button
• Patent No.: Taiwan M374130.
• AH-380-01: For the standard Power Inflator.

Description:

This new Duo-Alert is very compact in size. Only the best quality component is used in manufacturing of the Duo-Alert. The loud resonating frequency generated by this horn can be heard on the surface or approximately over a 1.0 K. range, and U/W approximately 100 meters.
The Duo-Alert is not only starting to be a major requirement for many Dive-aboard and dive operations; it is also an essential piece of gear that will add to the enjoyment of the dive to any buddy team that need to get each other's attention underwater.