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Garmin HRM-Tri

Product Code: GARHRMT

When paired with a compatible Garmin cycling, wrist mounted or smartwatch device, the Garmin HRM-Tri enables you to monitor your heart rate whilst you are running, cycling or swimming. Making it the perfect solution for triathletes.

The Heart Rate Monitor (HRM) Tri is designed to be worn around your sternum during activity. When worn the HRM Tri will wirelessly transmit data heart rate data real-time via ANT+ connectivity. When swimming the HRM-Tri stores heart rate data, then forwards it to your compatible Garmin device e.g. Garmn fenix 5.

Garmin part number: 010-10997-09

Compatibility: Compatible with selected Garmin devices including models within the following Garmin ranges; Garmin Edge (selected models), Garmin fenix, Garmin Forerunner (selected models), Garmin MARQ and Garmin vivoactive. View the compatibility list of Garmin products or scroll down to compatibility list.

Garmin HRM-Tri - £94.99


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Garmin Heart Rate Monitor Tri

The Garmin HRM-Tri has been specifically designed for triathletes. The HRM-Tri fits snugley around your sternum directly on your skin. To use simply pair the Garmin HRM-Tri with your compatible Garmin GPS device using ANT+ connectivity and you are ready to go. Compatible Heart Rate Monitor Tri models include the Garmin Edge 820, Garmin fenix 6X Pro and Garmin quatix 5.

When using the Garmin HRM-Tri in water (swimming), the HRM-Tri stores heart rate data when underwater, then forwards it to the Garmin device. The Garmin HRM Tri can withstand pressure equivalent to 50metres of water.

When running the HRM-Tri features a accelerometer module that measures torso movement to calculate 3 running metrics:*

  1. Cadence - the number of steps per minute. It displays the total steps (right and left combined).
  2. Vertical oscillation - the bounce in your running motion. It displays the vertical motion of your torso (measured in centimeters). HRM-Tri is compatible with several other fitness products but will only display heart rate when paired.
  3. Ground contact time - the amount of time in each step that your foot spends on the ground while running (measured in milliseconds).

*Running dynamics features are available only on the Garmin Forerunner 620/920XT and Garmin fenix 2/3. HRM-Tri is compatible with several other fitness products but will only display heart rate when paired.

Connecting and using the HRM Tri

Pairing your compatible Garmin device with the HRM Tri is easy and after pairing for the first time, it will then subsequently connect automatically.

You can also connect the Garmin heart rate monitor tri to some fitness equipment. Look out for the "ANT+ Link Here" logo on compatible equipment.

Caring for your heart rate monitor Tri

When using the heart rate monitor dual it may build up with sweat and salt stopping it from functioning properly making heart rate readings inaccurate. For this reason the strap can be removed from the heart rate monitor and it is recommended that you rinse the strap in water after every use. Garmin recommend the strap should be washed after every 7 uses. However the strap should not be put in to a tumble dryer.

Optional Cycle Maps (Garmin Edge models only)

If you'd like to add UK and European cycle maps to your compatible Garmin Edge device you can do just that by buying and installing Garmin Europe Cycle map on SD/microSd card.

Once installed the SD/microSD card enables you to select cycling, tour cycling or mountain biking options and then select the appropriate route for the type of cycling you do, taking you on paved roads, unpaved roads, or on paths and trails. Countries included are: Austria, Belgium, Bulgaria, Croatia, Czech, Denmark, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden and Switzerland. View the Garmin Europe Cycle map webpage for more information.

Key Features

‣Specifically designed for triathletes
‣Stores and forwards heart rate data to compatible Garmin devices
‣Soft strap is comfortable and adjustable
‣Worn around the chest
‣Front - flexible plastic. Rear - soft fabric adjustable to your size.
‣Has a range of 3 metres (devices must be within 3 metres of HRM)
‣Waterproof rating: 5 ATM
‣3.5 year battery life

What's in the box?

‣HRM-Tri Heart Rate Monitor

What is the Garmin heart rate monitor (HRM) Tri compatible with?

The genuine Garmin heart rate monitor (HRM) TRi is compatible with the following Garmin handheld, cycling and wrist mounted devices:

Garmin D2 Delta, D2 Delta PX, D2 Delta S, Descent Mk1, Edge 25, 130, 520, 520 Plus, 530, 820, 830, 1000, 1030, Explore, Explore 820, Explore 1000, Touring Plus, epix, fenix 3, fenix 3 Sapphire, fenix 5, fenix 5 Plus, fenix 5S, fenix 5S Plus, fenix 5X, fenix 5X Plus, fenix 6, fenix 6S, fenix 6X, fenix Chronos, Forerunner 630, 735XT, 920XT, 935, 945, MARQ Adventurer, Athlete, Aviator, Captain, Commander, Driver, quatix 3, quatix 5, quatix 5 Sapphire, Swim 2, tactix Bravo, tactix Charlie, VIRB 360.

Garmin HRM-Tri Technical Specification

‣Unit dimensions (including strap): Length: 60-142mm, Width: 30mm, Depth: 12mm
‣Weight: 59g
‣Module size: Length: 29.4mm, Width: 51.4mm, Depth: 8.5mm
‣Module Weight: 49g
‣Water Resistance: 5 ATM**
‣Battery: User-replaceable size CR2032 (3 volts)
‣Battery Life: 10 months (Tri training 1 hour per day)
‣Operating Temperature: -5°C – 50°C
‣Radio Frequency/Protocol: 2.4 GHz ANT wireless communication protocol
‣Pool chemical resistent: No
‣Range: 3metres
‣System Compatibility: ANT+

**The Garmin HRM Tri can withstand pressure equivalent to 50metres of water.

Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

Page updated: 4th March 2021

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