Aquatec : Picture 1 regular

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Aquatec : Picture 1 regular

About Aquatec Duo Alert

This Aquatec Duo Alert is very compact in size. Only the best quality components are used in manufacturing of the Aquatec Duo-Alert. The loud resonating frequency generated by this horn can be heard on the surface approximately over 0.6 miles (1.0 km) range and U/W approximately 330' (100 meters). The Aquatec Duo Alert produces a piercing 125dB sound on the surface and an 115dB sound underwater. The Aquatec Duo-Alert is not only starting to be major requirement for many live-aboard boats and dive operations; it's 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. The Duo-Alert is a dual function signaling device. It is actually a Scuba-Horn and Scub-Alert built together in one unit. There are 3 models available so there is sure to be one that fits your Buoyancy Compensators Inflator. The Duo Alert 1: for the standard Power Inflator, Duo Alert 2: Scubapro Air 2. Tusa Duo-Air and Atomic SS and Duo Alert 3: Sea Quest Air Source. Aqua Lung Micra, Oceanic Air XS, Zeagle Octo Plus.

Warranty Information

This product has a limited warranty of 12 months.

Aquatec Duo Alert Features

  • Aquatec Duo Alert
  • Signal in U/W and On the Surface
  • Major Requirement for Many Live-Aboards and Dive Operations
  • Easy to Activate, Brightly Colored Buttons
  • Compact In Size
  • Easy to Install
  • Volume: Approx. U/W: 115 to 125dB Surface: 125 to 130dB
  • Horn Generates Loud "Quacking" Sound
  • Signal Dive Buddy Effortlessly by the Press of a Button
  • For Surface Emergency or Attention Underwater
  • Durabe Construction: Marine Grade Chromed Brass and Plastic
  • Essential Piece of Gear for Safe, Enjoyable Diving
  • Great Attention Getter Underwater
  • Audable Range:
    Surface Approximately Over 0.6 Miles (1.0 km) Range
    Uunderwater Approximately 330' (100 meters)
  • 3-Models that Fit 95% of All Inflators:
    Duo Alert 1: for Standard Power Inflator
    Duo Alert 2: Scubapro Air 2 Tusa Duo-Air and Atomic SS
    Duo Alert 3: Sea Quest Air Source. Aqua Lung Micra. Oceanic Air XS. Zeagle Octo Plus

Aquatec Duo Alert Customer Reviews Powered by TurnTo®

Review Summary


(based on 9 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Good quacker, surface needs work.

Underwater signal okay. Works better at depth (with less ambient noise). Have to hold button down for over 10 seconds with surface signal to clear out water before a moderate whistle is heard - not great for panic situation.


Most Liked Negative Review


More like the Aquatec

I bought this so as to combine the underwater "quacking" of my Aquatec Scub Alert with the ear splitting safety signal of my Dive Alert Signaling Device in on convenient package. Well the "quacker" works great but the surface horn is a feeble joke. I put on hearing protectors and threw the dogs outside. When I triggered it I had to take off my earmuffs to make sure it was working. The volume is much less than a regular whistle. I was excited to see this product because the previous attem...

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Reviewed by 9 customers

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great addition


always receive my orders quickly


Simlpy does not work


The "quacker" just dose not work


Iffy product


I had high hopes for this product and after testing it on 10 dives, the best noise I could get out of the underwater Duo Alert was similar to blowing a raspberry at someone, underwater. My dive buddy couldn't hear it all unless he was within a meter. The topsideDuo Alert was no better. Beyond 2 meters the noise it made fell into the background noise. Our conclusion is that the Duo Alert is quieter than blowing the whistle attached to your BC. I sent mine back for a refund.


Good Product


Topside noise maker is not as loud as my last one. You really need to shake out the water for it to scream. The rest works fine.


I would buy this product again


Excelent product

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
MATIAS I  both alerts on the same device
EDWARD M  As a gift.
NEUZA C  Good product
TIM M  To alert my buddy or the boat. Works great underwater, but only so-so above water as you really need to purger the water a lto and I found it took 8-9 tries to get the desired high pitched whistle. Once it worked, it was very very loud and effective.
Shopper  Will this device fit with Scubapro Air2 5th generation (Large connector) and what device number I should select to avoid mistakes ?
ROBERT Y  The above water signal quit working on my first dive. I suggest you choose another signal device.
Frank L  Version 2 is what you need for the Air 2.
Ricardo C  Is the Aquatec AH-380-01 slimmer than the Aquatec AH-150-01? You see I have a new TUSA Liberator Sigma II and the AH-150-01 I have will not fit, the BCD hose is slightly wider than my previous BCD (Sea Quest). If the new AH-380-01 is slimmer, then it might fit. The jacks are the same, its just the width of the unit wont make it fit.
THOMAS P  I have the same problem the unit will not fit any .Air too fittings are larger this product will not fit I just bought one for my scuba pro bcd with air 2 and works fine the fittings are two large for regular bcd fittings.
ROBERT Y  I Can't compare with others,but we bought two Aquatec Duo Alerts several years ago. The underwater function has worked acceptably, but the above water signal began weak and after a few dives I could whisper louder. I do NOT recommend the Aquatec Duo Alert.
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