Pairing Your Suunto Chest Belt to the Suunto t3 Watch

If you are using your Suunto t3 with an indoor rower equipped with a PM4, please be aware of the following:

  • The t3 watch is programmed to "pair" with the first chest belt it detects when you push any buttons on the watch for the very first time. It will only work with that chest belt transmitter unless you complete a re-pairing procedure (see below) to make it work with a different chest belt.
  • If you are already using another Suunto chest belt (such as the one that came with your PM4) be sure to place this belt near the t3 watch before using your watch for the first time. Important: Make sure that the chest belt that came with the t3 watch (and any other Suunto chest belts) are placed more than 40 ft away from the t3 watch when you first use the watch. This will ensure that your t3 watch pairs with the chest belt you will be wearing.

Pairing Instructions

If you need to re-pair your t3 watch with another chest belt, please take the following steps:

To pair the transmitter belt:

  1. Remove the battery from the chest belt transmitter.
  2. Short-circuit the - and + metal plates in the battery compartment by connecting them with a metal instrument
  3. Select PAIR in the Training menu of your Suunto t3.
  4. Select Hr belt. The message 'TURN ON NEW DEVICE' is displayed.
  5. Insert the battery in the battery compartment and wait for acknowledgment. Within 30 seconds either 'PAIRING COMPLETE,' or, if pairing failed, 'NO DEVICES FOUND' is displayed.
  6. If pairing is successful, close the battery compartment cover. If pairing fails and no devices can be found, remove the battery and repeat steps 2–6.

Removing the battery, short-circuiting the transmitter belt and putting the battery back again activates the ID transmission of the transmitter belt.


Suunto t3 watch