---
product_id: 230520283
title: "T31 Coded Transmitter and Belt Set"
brand: "polar"
price: "83214 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/230520283-t31-coded-transmitter-and-belt-set
store_origin: HU
region: Hungary
---

# T31 Coded Transmitter and Belt Set

**Brand:** polar
**Price:** 83214 Ft
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** T31 Coded Transmitter and Belt Set by polar
- **How much does it cost?** 83214 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/230520283-t31-coded-transmitter-and-belt-set)

## Best For

- polar enthusiasts

## Why This Product

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

## Description

Polar T31 Coded Transmitter and Belt Set

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Polar |
| Compatible Devices | Desktops |
| Screen Size | 54 Inches |
| Item Weight | 0.09 Kilograms |
| Battery Life | 500 Hours |
| Sensor Type | Pulse Sensor |
| Battery Description | Lithium-Ion |
| UPC | 725882017594 |
| Global Trade Identification Number | 00725882017594, 00725882201351 |
| Manufacturer | Polar |
| Batteries Included | Yes |
| Length | 14.2 Inches |
| Width | 3.4 Inches |
| Height | 0.8 Inches |
| Weight | 0.2 Pounds |
| Power Source | battery powered |
| Sport | fitness |

## Product Details

- **Brand:** Polar
- **Compatible Devices:** Desktops
- **Screen Size:** 54 Inches
- **Item Weight:** 0.09 Kilograms
- **Battery Life:** 500 Hours
- **Sensor Type:** Pulse Sensor
- **Battery Description:** Lithium-Ion
- **UPC:** 725882017594
- **Global Trade Identification Number:** 00725882017594, 00725882201351
- **Manufacturer:** Polar

## Images

![T31 Coded Transmitter and Belt Set - Image 1](https://m.media-amazon.com/images/I/614acgZzr8L.jpg)

## Questions & Answers

**Q: How do you change the battery?**
A: Although the unit is designed NOT to have the battery replaced, it can be done.  It takes a CR2032 coin type battery.I followed this video and successfully replaced mine in under ten minutes.https://youtu.be/lBsv9XoV6aA

**Q: Is it compatible  with a life fitness treadmill? If so how can it be connected?**
A: Yes it is compatible, actually I purchased for same treadmill brand . It is conected automatically by gymlink so no setup is required.  Great product .

**Q: how do you pair this t31 with compatible treadmill machines with polar sign on it?**
A: Pairing is automatic.  Just start your workout and it will sync with a little sweat

**Q: Does the t31 work with the iphone 5? I've tried without success using both MapMyRide and the Polar App. Cheers M**
A: The problem is that you need the device to be capable of acquiring data from the transmiter in it's own frequency and I do not think that the iphone is able to do that without a special additional device. For example you have a app called sports tracker that has its own heart rate monitor, I do not know how it works gut there must be some way to catch the information from the heart rate monitor to the phone. For what I know is very probable that you should need some additional device to get the heart rate monitor frequency.

## Frequently Bought Together

- Polar T31 Coded Chest Transmitter and Elastic Strap
- Polar H9 Heart Rate Sensor
- hengkang Fit for Polar FT4/FT7 Watch Bands, Stylish Adjustable Silicone Replacement Band Straps Wristbands Accessory Band Bracelet

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**Shop now:** [https://www.desertcart.hu/products/230520283-t31-coded-transmitter-and-belt-set](https://www.desertcart.hu/products/230520283-t31-coded-transmitter-and-belt-set)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-12*