---
product_id: 10098523
title: "Mares Magnetic Shaker - Underwater Scuba Diving Safety Signaling Noise-Making Device"
brand: "mares"
price: "€ 93.90"
currency: EUR
in_stock: true
reviews_count: 13
category: "Mares"
url: https://www.desertcart.pt/products/10098523-mares-magnetic-shaker-underwater-scuba-diving-safety-signaling-noise-making
store_origin: PT
region: Portugal
---

# Loud underwater signaling Magnetic noise control Lightweight & compact Mares Magnetic Shaker - Underwater Scuba Diving Safety Signaling Noise-Making Device

**Brand:** mares
**Price:** € 93.90
**Availability:** ✅ In Stock

## Summary

> 🧜‍♂️ Make waves, not silence — be heard beneath the surface!

## Quick Answers

- **What is this?** Mares Magnetic Shaker - Underwater Scuba Diving Safety Signaling Noise-Making Device by mares
- **How much does it cost?** € 93.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/10098523-mares-magnetic-shaker-underwater-scuba-diving-safety-signaling-noise-making)

## Best For

- mares enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Portable:** Crafted from lightweight aluminum, built to withstand repeated dives without adding bulk to your gear.
- • **Effortless Control:** Flip to mute or shake to activate—intuitive design keeps your dive peaceful until you need attention.
- • **Essential Safety Tool:** Trusted by pros and recreational divers alike for reliable communication and emergency signaling.
- • **Versatile Dive Companion:** Perfect for instructors, rescue teams, marine researchers, and anyone serious about underwater safety.
- • **Precision Underwater Alerts:** Magnetic system blocks unwanted noise until you shake hard for a clear, echoing signal.

## Overview

The Mares Magnetic Shaker is a compact, lightweight underwater signaling device featuring a powerful magnetic system that prevents accidental noise and delivers loud, clear alerts when shaken. Built from durable aluminum, it offers reliable, easy-to-use communication for divers, enhancing safety and coordination during every dive.

## Description

MARES MAGNETIC SHAKER (415172) The Mares Magnetic Shaker is the ultimate underwater communication & safety device, ensuring your dive buddy never misses a signal. Designed with a special magnetic system, it prevents unwanted noise while delivering precise, attention-grabbing alerts when needed. Whether you're guiding a scuba diving group, signaling in an emergency, or simply needing to communicate mid-dive, this rattler ensures you're always heard. Easy to use, the Magnetic Shaker features an innovative functioning mechanism. Simply flip to silence unwanted sounds or shake harder to create a loud, clear echo underwater. The magnet inside securely blocks the ball bearing from making continuous, annoying noises, keeping your dive peaceful until action is required. Lightweight yet durable, this noise-making shaker is crafted from high-quality materials for longevity and portability. Its compact design makes it ideal for divers on the go, fitting easily into your dive kit without adding bulk. Built to endure multiple dives, the Magnetic Shaker is a reliable and consistent tool, ready to meet the demands of any underwater environment.

Review: Loud, Easy to Use, Only Makes Noise When Desired - I have seen a bunch of variations of the noise makers, but I was drawn to this one the most. My only concern was if it would rattle too much unintentionally. When on land, it does rattle quite often so this made me worry. But rest assured, underwater it works perfectly. It is very loud and easy to use. The one thing that might not be obvious is that you have to "reset" the shaker after use. After using it, the ball bearings are still loose, so you have to invert the shaker so that it reengages the magnets and locks in place (you will hear a snap). Some might ask why you need something like this for diving. While I think it is obvious, let me share a story with you. In my first dive trip ever I went to the Galapagos. On my final dive, our dive master took us deeper than we were supposed to at 30 meters (I was only an open water diver certified for 30 feet). I wasn't aware, because I was using rental equipment that was not working (another big mistake). I was with a group of 6, just a few feet away from my buddy when suddenly lost vision. Everything went black, but I was still conscious. I tried to grab my buddy and signal for help, but I was in the back and even though I was just a few feet away, no one realized something was wrong. My dive buddy was following someone else (who she thought was me), and the dive master must have not been keeping tabs on me. I ended up being left alone for 3 minutes under water completely blind. Fortunately, I figured out that I had a mask squeeze, cleared my mask, and restored my vision (albeit very blurry and seeing double). I couldn't find my group and had to surface. The boat directed me towards my group, and I rejoined them later on. To my surprise, no one even realized I was gone and only realized when I appeared. While a lot of things went wrong here, having a noisemaker would have quickly brought attention to me and prevented the situation from escalating. That is just one example, and I am sure there are many more. That is why I have a noisemaker for me and for my buddy, and would dive without it now.
Review: Good shaker - After years of using a air integrated underwater alert, got tired of them leaking (even though I regularly soaked them in a vinegar solution to remove corrosion) and started looking for something simple that wasn't expensive and not tied to air. This shaker is the ticket for me. I should give some advice. The magnet is VERY strong so the interior noise maker stays firmly attached to it and does not rattle accidentally. However, this means that you have to shake it vertically under water to release the interior ball from the magnet for it to work and it does take some strong shakes to release it. Once it does, shaking it works really well. I used it yesterday on a dive and the sound carried very well. I am a 71 year old woman and if I can shake it hard enough to disengage the magnet, I would think that most can. I do recommend experimenting with it before diving to get a sense of how hard you need to shake it to disengage the magnet.

## Features

- EFFICIENT UNDERWATER COMMUNICATION - Ensure your dive buddy always hears you with the Mares Magnetic Shaker; With its special magnetic system, this scuba diving signaling device is perfect for alerting your companions during dives
- EASY TO USE - Flip to mute unwanted noise and shake harder to signal with precision; Shaking this underwater safety device moves the ball bearing, creating a loud echo sound underwater; The magnet blocks the metal ball from making continuous annoying noises
- COMPACT & LIGHTWEIGHT DESIGN - Crafted from lightweight and durable aluminum, this diving noise-making shaker is easy to carry and store; The sleek design is especially useful for divers on the go, offering an attention-grabbing solution for underwater signaling
- RELIABLE TOOL - Engineered with high-quality materials, this signaling device withstands the challenges of multiple dives; The sturdy build ensures consistent performance, making it a dependable diving kit item
- VERSATILE APPLICATION - This magnetic rattle noise shake stick is an essential underwater communication tool for diverse needs; A great way of signaling for help in an emergency, this device is a must for professional diving instructors, marine researchers, rescue teams, or recreational divers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002ZDP7PI |
| Best Sellers Rank | #186,846 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #52 in Diving Safety Gear |
| Brand Name | Mares |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (428) |
| Date First Available | November 5, 2011 |
| Included Components | Mares Magnetic Shaker Scuba Diving Communication Device |
| Item Dimensions LxWxH | 7 x 1 x 1 inches |
| Item Package Dimensions L x W x H | 9.41 x 5.94 x 1.61 inches |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Mares |
| Material | polyester |
| Model Year | 2016 |
| Number of Items | 1 |
| Package Weight | 0.12 Kilograms |
| Part Number | 415172 |
| Warranty Description | This product comes with a full manufacturer warranty. |

## Images

![Mares Magnetic Shaker - Underwater Scuba Diving Safety Signaling Noise-Making Device - Image 1](https://m.media-amazon.com/images/I/61aVQQpw3JL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is the magnet in this strong enough to damage dive computers, cameras or other electronics? Thank you, Ashley**
A: Hi Ashley,Thanks for your question. No, the magnet is strong enough to damage electronics. If you have any other questions, please let us know.ThanksDivemaster Chris866-728-2293

**Q: How long is it?**
A: It is 6 1/4" long. The string is not as long as in the picture, you cannot loop it through, but it can be replaced.

**Q: What material is the cylinder made of?  Could it also be used to "bang a tank" if the rattle function fails?**
A: This shaker is made from anodized aluminum. It can be used to bang your tank in an emergency but you might scratch or dent your rattler.

**Q: Did divemaster chris mean to say that the magnet is not strong enough to damage electronics or throw your compass off?**
A: No not at all

## Customer Reviews

### ⭐⭐⭐⭐⭐ Loud, Easy to Use, Only Makes Noise When Desired
*by D***. on December 20, 2016*

I have seen a bunch of variations of the noise makers, but I was drawn to this one the most. My only concern was if it would rattle too much unintentionally. When on land, it does rattle quite often so this made me worry. But rest assured, underwater it works perfectly. It is very loud and easy to use. The one thing that might not be obvious is that you have to "reset" the shaker after use. After using it, the ball bearings are still loose, so you have to invert the shaker so that it reengages the magnets and locks in place (you will hear a snap). Some might ask why you need something like this for diving. While I think it is obvious, let me share a story with you. In my first dive trip ever I went to the Galapagos. On my final dive, our dive master took us deeper than we were supposed to at 30 meters (I was only an open water diver certified for 30 feet). I wasn't aware, because I was using rental equipment that was not working (another big mistake). I was with a group of 6, just a few feet away from my buddy when suddenly lost vision. Everything went black, but I was still conscious. I tried to grab my buddy and signal for help, but I was in the back and even though I was just a few feet away, no one realized something was wrong. My dive buddy was following someone else (who she thought was me), and the dive master must have not been keeping tabs on me. I ended up being left alone for 3 minutes under water completely blind. Fortunately, I figured out that I had a mask squeeze, cleared my mask, and restored my vision (albeit very blurry and seeing double). I couldn't find my group and had to surface. The boat directed me towards my group, and I rejoined them later on. To my surprise, no one even realized I was gone and only realized when I appeared. While a lot of things went wrong here, having a noisemaker would have quickly brought attention to me and prevented the situation from escalating. That is just one example, and I am sure there are many more. That is why I have a noisemaker for me and for my buddy, and would dive without it now.

### ⭐⭐⭐⭐⭐ Good shaker
*by A***. on November 4, 2020*

After years of using a air integrated underwater alert, got tired of them leaking (even though I regularly soaked them in a vinegar solution to remove corrosion) and started looking for something simple that wasn't expensive and not tied to air. This shaker is the ticket for me. I should give some advice. The magnet is VERY strong so the interior noise maker stays firmly attached to it and does not rattle accidentally. However, this means that you have to shake it vertically under water to release the interior ball from the magnet for it to work and it does take some strong shakes to release it. Once it does, shaking it works really well. I used it yesterday on a dive and the sound carried very well. I am a 71 year old woman and if I can shake it hard enough to disengage the magnet, I would think that most can. I do recommend experimenting with it before diving to get a sense of how hard you need to shake it to disengage the magnet.

### ⭐⭐⭐⭐⭐ Great for Scuba Diving!
*by A***N on December 7, 2019*

I was hesitant to purchase this, as it's hard to know what to expect. The shaker does not make much noise above water (unless you are purposely shaking it, and a jingle hear and there), but works really well underwater when you are trying to shake the device. This device made me feel more secure as a diver, simply giving me a way to get ahold of my buddy or divemaster if needed (especially when we get distracted and find ourselves spaced out). It was all really helpful to get someones attention when you wanted to point something out - especially when the group is ahead of you. The noisemaker did not scare away fish, however, we didn't use it when we were surrounded by sharks, so I'm not sure if it would scare them away or not. Great $30 for comfort. The name Mares is starting to wear off after 6 dives, but it doesn't seem to be impacting the noisemaker itself.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-19*