---
product_id: 530074902
title: "Diving Duo-Alert Air Powered Surface & Underwater Signaling Device Scuba Dive BC BCD Gear"
brand: "promate"
price: "R$1362"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/530074902-diving-duo-alert-air-powered-surface-and-underwater-signaling-device
store_origin: BR
region: Brazil
---

# 100m underwater signal range 125-130dB surface alert Fits multiple BCD inflator models Diving Duo-Alert Air Powered Surface & Underwater Signaling Device Scuba Dive BC BCD Gear

**Brand:** promate
**Price:** R$1362
**Availability:** ✅ In Stock

## Summary

> 🔔 Stay heard, stay safe — the ultimate dive alert for pros who never miss a signal!

## Quick Answers

- **What is this?** Diving Duo-Alert Air Powered Surface & Underwater Signaling Device Scuba Dive BC BCD Gear by promate
- **How much does it cost?** R$1362 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/530074902-diving-duo-alert-air-powered-surface-and-underwater-signaling-device)

## Best For

- promate enthusiasts

## Why This Product

- Trusted promate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Audible Range:** Reach your dive buddy up to 100 meters below or 1 km above water effortlessly.
- • **Compact Yet Robust Design:** Engineered with premium components for durability without bulk.
- • **Tailored Fit for Top BCDs:** Model II compatibility with Sherwood, Tusa, Zeagle & more ensures perfect integration.
- • **Essential Dive Safety Gear:** A must-have for professional divers craving reliable communication and peace of mind.
- • **Dual-Mode Signaling Powerhouse:** Seamlessly alerts both underwater and on surface with piercing clarity.

## Overview

The Promate Aquatec Duo-Alert Model II is a high-decibel, dual-function scuba signaling device designed for both underwater and surface use. Delivering 115-130dB alerts audible up to 100 meters underwater and 1 km on the surface, it fits popular BCD inflators like Sherwood Gemini and Tusa Duo-Air. Compact and built with premium materials, it’s an essential safety and communication tool for serious divers.

## Description

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 or approximately over a 1.0K range and U/W approximately 100 meters The AQUATEC Duo-Alert is not only stating to be 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 others attention underwater. The Duo-Alert is a dual function signaling device. It is actually a Scuba-Horn and Scuba-Alert built together in one unit. It comes with 3 designs for different type BCDs; Model I (Standard) - Fits all styles of BC's except if fitted with the a breathable type inflator;Model II - Fits Sherwood Gemini, Tusa Duo-Air, DiveRite RiteSource, H2Odyssea Inflator plus, Zeagle Octo-Z, Atomic SS1 or Scuba Pro Air II;Model III - Fits Aeris Air Link, Oceanic Air XS2, Zeagle Octo+, Aqualung Air Mic, Seaquest Air Source, Apeks Octo+ or Beuchat Venturi system.

## Features

- Aquatec Duo-Alert Air Powered Surface & UnderWater (U/W) Signaling Device
- Signal in U/W and Surface, Volume:Approx. U/W:115-125dB Surface: 125~130dB
- It's very loud keep away from your ears.
- After each dive, the device should be pressurized, and activated in order to blow the trapped water out of unit. Always rinse with fresh water after use.
- Model II - Fits Sherwood Gemini, Tusa Duo-Air, DiveRite RiteSource, H2Odyssea Inflator plus, Zeagle Octo-Z, Atomic SS1 or Scuba Pro Air II

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Promate |
| Manufacturer | AQUATEC |
| Part Number | AH-380-02 |
| Style | Model II |

## Images

![Diving Duo-Alert Air Powered Surface & Underwater Signaling Device Scuba Dive BC BCD Gear - Image 1](https://m.media-amazon.com/images/I/51OoUNqt3gL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Promate Diving Duo-Alert Air Powered Surface & Underwater Signaling Device Scuba Dive BC BCD Gear
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**Shop now:** [https://www.desertcart.com.br/products/530074902-diving-duo-alert-air-powered-surface-and-underwater-signaling-device](https://www.desertcart.com.br/products/530074902-diving-duo-alert-air-powered-surface-and-underwater-signaling-device)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-25*