---
product_id: 592811706
title: "Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication"
brand: "garmin"
price: "€ 578.45"
currency: EUR
in_stock: true
reviews_count: 10
category: "Garmin"
url: https://www.desertcart.ie/products/592811706-garmin-descent-t2-transceiver-subwave-wireless-communication
store_origin: IE
region: Ireland
---

# 20 ATM dive-rated ruggedness SubWave™ sonar wireless comms up to 30m 100-hour battery life, user-replaceable Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication

**Brand:** garmin
**Price:** € 578.45
**Availability:** ✅ In Stock

## Summary

> 🤿 Stay Connected Below the Surface — Dive Smarter, Dive Safer

## Quick Answers

- **What is this?** Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication by garmin
- **How much does it cost?** € 578.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/592811706-garmin-descent-t2-transceiver-subwave-wireless-communication)

## Best For

- garmin enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Buddy Monitoring:** Track up to 8 tanks’ air pressure and consumption rates in real-time via SubWave™ sonar network.
- • **Dive Deeper, Stay Connected:** Engineered to withstand 20 ATM pressure so you can explore the depths with confidence.
- • **Effortless Bluetooth Pairing:** Quickly sync with compatible Descent dive computers and identify your dive buddies with ease.
- • **Instant Diver-to-Diver Messaging:** Exchange preformatted messages underwater up to 30 meters for enhanced safety and coordination.
- • **Long-Lasting Power for Extended Dives:** Up to 100 hours of dive time on a single user-replaceable CR123A lithium battery keeps you going.

## Overview

The Garmin Descent™ T2 Transceiver is a compact, rugged dive accessory rated to 20 ATM that wirelessly transmits tank pressure, air time, and consumption data to compatible Descent dive computers. Utilizing advanced SubWave™ sonar technology, it enables real-time diver-to-diver communication and monitoring up to 30 meters underwater. With Bluetooth Low Energy pairing and a 100-hour battery life, it’s the essential tool for professional and recreational divers seeking enhanced situational awareness and safety.

## Description

Every breath, every tank, every buddy on your dive — track them all on your wrist when you pair the Descent™ T2 transceiver with compatible air-integrated Descent™ dive computers (sold separately). Using enhanced SubWave™ sonar technology, this system lets you monitor up to 8 tanks (air pressure, use rate, time remaining and more) and exchange preformatted diver-to-diver messages with networked buddies wearing their compatible air-integrated dive computers (available with software v.15.70 or later). The transceiver’s 20 ATM dive rating means you can dive deeper with added confidence. A simplified pairing process using BLUETOOTH® Low Energy wireless technology makes it easy to identify your buddies’ names with the Descent T2 transceivers they’re wearing.

Review: Expensive but worth it - So far it works great. Both myself and my dive buddy have this setup with the mk3i watch and it works great. It's nice to be able to monitor eachothers air supply. If his lines rupture and he's behind me I might not otherwise notice immediately. But with this I get a notification when his tank drops below 1000 psi. Great safety device.
Review: Essential addition to Garmin Dive Computers - Never Dropped Connection All Day - I bought this along with the Descent X50i for a recent dive trip and did an extensive amount of research before going with this Brand / Model. I know Shearwater are pretty strong in the wireless market, but there were several features that Garmin offered that made me select the Garmin. I liked the idea of the Sonar technology and the increased range. Since I frequently dive with my family, I like the idea of being able to monitor their air/depth as they are just getting started with diving. One other factor that made me select Gamin over the other brands is my familiarity with Garmin. We use several of their products for running, cycling, etc. and have had consistently good experiences. Some additional notes on concerns I had: SubWave (Sonar) Noise: I read a lot about the sound that the SubWave makes. I didn’t hear anything and neither did the rest of my group. I thought maybe it was due to my age, but everyone else is in their 20’s and no one heard anything. I even had the T2 Transmitter power turned up one level from the standard to make sure I didn’t have connection issues and still didn’t hear anything. T2 Connection: I was testing the set up in a pool prior to our trip to make sure everything worked correctly and became concerned because the connection would drop and I kept losing the Air Pressure data. I came close to returning the unit thinking it was a defect, but luckily decided to call Garmin Support first. They were VERY helpful and explained that the unit uses Bluetooth above water and Sonar under water. When you initially enter the water, the unit will switch over to Sonar mode but it waits until you’re around 10 feet under. The pool I was using to test was only 8 feet deep so it never made the switch and would lose the Bluetooth connection within that time. I also learned that the T2 Transmitter has it's own depth gauge which drives the switch-over not the depth on the computer. Garmin assured me that it would be fine once I was in deeper water and it was. Everything worked perfectly. My last concern was that I’d lose the connection again when I was ascending and at a safety stop, but Garmin said that once it’s in Sonar mode it should remain there until I surface. They were right. I did 4 safety stops at depths from 20-12 feet and never lost connection. Overall I’m extremely happy with the T2 Transmitter. It held connection throughout the entire day, never dropping the signal. I’m looking forward to others in my group getting one so we can monitor each other’s air and depth, but that will require an additional investment.

## Features

- Compact dive accessory attaches to high-pressure regulator ports, without interference from hoses
- Built to withstand the elements, the Descent T2 transceiver is dive-rated to 20 ATM (see Garmin.com/waterrating) — so you can dive deeper without worry
- Get tank pressure, air time remaining and air consumption rate sent directly to paired air-integrated Descent dive computers (sold separately) for enhanced situational awareness
- For improved communication, exchange preformatted diver-to-diver messages with other Descent T2 transceiver-networked buddies wearing SubWave network-compatible air- integrated dive computers up to 30 meters away (available with software v.15.70 or later)
- Pair up to 8 transceivers with each compatible air-integrated Descent series dive computer (sold separately) within range, so you can dive with multiple tanks or monitor your dive buddies’ air levels and depths up to 10 meters
- A simplified pairing process using BLUETOOTH Low Energy wireless technology makes it easy to identify your buddies’ names with the Descent T2 transceivers they’re wearing
- Descent T2 transceiver battery life: up to 100 hours of diving with a user-replaceable CR123A lithium battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CNSH2D8H |
| Additional Features | Bluetooth |
| Age Range Description | Adult |
| Band Color | black |
| Band Material Type | Silicone |
| Battery Cell Composition | Lithium Metal |
| Battery Cell Type | Lithium Metal |
| Best Sellers Rank | #158,574 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #10 in Diving Communication Devices |
| Brand | Garmin |
| Built-In Media | Descent T2 transceiver, Air spool, Documentation |
| Closure Type | Clip |
| Color | Black |
| Communication Feature | True |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.8 out of 5 stars 57 Reviews |
| Display Type | No Display |
| External Testing Certification | ANATEL |
| GPS | No GPS |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 00753759332433 |
| Human Interface Input | Buttons |
| Item Dimensions | 1.43 x 1.43 x 3.3 inches |
| Item Dimensions D x W x H | 1.43"D x 1.43"W x 3.3"H |
| Item Type Name | Dive Transceiver |
| Item Weight | 8.8 ounces |
| Manufacturer | Garmin |
| Metrics Measured | pressure sensor |
| Model Name | Descent™ T2 Transceiver |
| Model Number | 010-13308-00 |
| Operating System | Garmin OS |
| Shape | Round |
| Special Feature | Bluetooth |
| Sport Type | Diving |
| Style Name | Rugged Modern |
| Supported Application | Diving |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex |
| UPC | 753759332433 |
| Unit Count | 1 Count |
| Warranty Description | 1 year limited warranty |
| Warranty Type | Limited |
| Water Resistance Depth | 30 meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP6X |
| Wearable Computer Type | Smart Glasses |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |

## Product Details

- **Battery Cell Composition:** Lithium Metal
- **Brand:** Garmin
- **Connectivity Technology:** Bluetooth
- **GPS:** No GPS
- **Model Name:** Descent™ T2 Transceiver
- **Operating System:** Garmin OS
- **Shape:** Round
- **Special Feature:** Bluetooth
- **Style:** Rugged Modern
- **Wireless Communication Standard:** Bluetooth

## Images

![Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication - Image 1](https://m.media-amazon.com/images/I/61prgVna2IL.jpg)
![Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication - Image 2](https://m.media-amazon.com/images/I/61lcveGOnTL.jpg)
![Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication - Image 3](https://m.media-amazon.com/images/I/61TgOOr1WVL.jpg)
![Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication - Image 4](https://m.media-amazon.com/images/I/71SMPPXDGfL.jpg)
![Garmin Descent™ T2 Transceiver, Subwave™ Wireless Communication - Image 5](https://m.media-amazon.com/images/I/71xpsPK-84L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Expensive but worth it
*by A***R on August 12, 2026*

So far it works great. Both myself and my dive buddy have this setup with the mk3i watch and it works great. It's nice to be able to monitor eachothers air supply. If his lines rupture and he's behind me I might not otherwise notice immediately. But with this I get a notification when his tank drops below 1000 psi. Great safety device.

### ⭐⭐⭐⭐⭐ Essential addition to Garmin Dive Computers - Never Dropped Connection All Day
*by M***R on July 19, 2025*

I bought this along with the Descent X50i for a recent dive trip and did an extensive amount of research before going with this Brand / Model. I know Shearwater are pretty strong in the wireless market, but there were several features that Garmin offered that made me select the Garmin. I liked the idea of the Sonar technology and the increased range. Since I frequently dive with my family, I like the idea of being able to monitor their air/depth as they are just getting started with diving. One other factor that made me select Gamin over the other brands is my familiarity with Garmin. We use several of their products for running, cycling, etc. and have had consistently good experiences. Some additional notes on concerns I had: SubWave (Sonar) Noise: I read a lot about the sound that the SubWave makes. I didn’t hear anything and neither did the rest of my group. I thought maybe it was due to my age, but everyone else is in their 20’s and no one heard anything. I even had the T2 Transmitter power turned up one level from the standard to make sure I didn’t have connection issues and still didn’t hear anything. T2 Connection: I was testing the set up in a pool prior to our trip to make sure everything worked correctly and became concerned because the connection would drop and I kept losing the Air Pressure data. I came close to returning the unit thinking it was a defect, but luckily decided to call Garmin Support first. They were VERY helpful and explained that the unit uses Bluetooth above water and Sonar under water. When you initially enter the water, the unit will switch over to Sonar mode but it waits until you’re around 10 feet under. The pool I was using to test was only 8 feet deep so it never made the switch and would lose the Bluetooth connection within that time. I also learned that the T2 Transmitter has it's own depth gauge which drives the switch-over not the depth on the computer. Garmin assured me that it would be fine once I was in deeper water and it was. Everything worked perfectly. My last concern was that I’d lose the connection again when I was ascending and at a safety stop, but Garmin said that once it’s in Sonar mode it should remain there until I surface. They were right. I did 4 safety stops at depths from 20-12 feet and never lost connection. Overall I’m extremely happy with the T2 Transmitter. It held connection throughout the entire day, never dropping the signal. I’m looking forward to others in my group getting one so we can monitor each other’s air and depth, but that will require an additional investment.

### ⭐⭐⭐⭐⭐ Essential Safety and Seamless Integration for Advanced Divers
*by T***Y on September 26, 2024*

I’ve been using the Garmin Descent T2 Transceiver on my dives, and it has been a game changer. It seamlessly connects to my Garmin Descent Mk3i dive watch, providing real-time tank pressure, air time, and air consumption rate, which significantly enhances my situational awareness. While the pod is easy to install, I recommend using a short 6-inch HP hose for easier attachment, especially if your octopus rig is a bit tight, as the pod can be too wide for direct connection in some setups. The ability to pair multiple transceivers is an excellent safety feature, allowing me to monitor my dive buddies’ air levels when I’m guiding less experienced divers. The wireless communication is reliable even at 30 meters, and the preformatted diver-to-diver messaging adds an extra layer of convenience. Though it’s a bit pricey, the peace of mind it provides underwater is well worth the investment.

## Frequently Bought Together

- Garmin Descent™ T2 Transceiver with Subwave™ Wireless Communication
- Garmin Descent™ Mk3i, Dive Computer and Multisport GPS Smartwatch, Air Integration, Black
- Garmin Descent™ Mk3i, Dive Computer and Multisport GPS Smartwatch, Air Integration, Black

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-08-21*