--- product_id: 230520283 title: "Polar T31 Coded Transmitter and Belt Set" brand: "polar" price: "AR$443118" currency: ARS in_stock: true reviews_count: 5 category: "Polar" url: https://www.desertcart.com.ar/products/230520283-polar-t31-coded-transmitter-and-belt-set store_origin: AR region: Argentina --- # Polar T31 Coded Transmitter and Belt Set **Brand:** polar **Price:** AR$443118 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Polar T31 Coded Transmitter and Belt Set by polar - **How much does it cost?** AR$443118 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/230520283-polar-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 From the Manufacturer Slim, lightweight, and water-resistant, the Polar T31 coded transmitter and belt set accurately transmits your heart rate data to your Polar wrist-top computer. As a result, it's easy to monitor your heart rate during training runs. This version of the T31 coded, meaning it prevents crosstalk from other electronic devices to ensure complete accuracy (Polar also sells a non-coded T31). It's also built to last, with a design that holds up to 2,500 hours of training usage. The transmitter belt--which works with all current Polar wrist-top computers except the CS600 and RS800--includes a sealed transmitter and elastic strap.About Polar The first EKG accurate wireless heart rate monitor was invented by Polar back in 1977 as a training tool for the Finnish National Cross Country Ski Team. The concept of "intensity training" by heart rate swept the athletic world in the eighties. By the 1990s, individuals were looking to heart rate monitors not only for performance training needs, but also for achieving everyday fitness goals. Today, the same concept of heart rate training is being used by world-class athletes as well as everyday people trying to lose weight. Polar is the leading brand among consumers, coaches, and personal trainers worldwide and the company is committed to not only producing the best products, but also being the leading educator on the benefits of heart rate based exercise. Review: Banda - Funcional con caminadoras Review: great - The product is excellent, but there is a delivery delay that causes it to take longer than expected. ## 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 ![Polar 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Banda *by L***E on 12 February 2025* Funcional con caminadoras ### ⭐⭐⭐⭐ great *by S***I on 16 December 2024* The product is excellent, but there is a delivery delay that causes it to take longer than expected. ### ⭐⭐⭐⭐⭐ Polar, affidabile e pratica. *by D***A on 28 February 2026* Perfetta. Polar è sempre una garanzia anche con gli articoli non all’ultima moda. Per chi cerca dati solidi, perfetta. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/230520283-polar-t31-coded-transmitter-and-belt-set](https://www.desertcart.com.ar/products/230520283-polar-t31-coded-transmitter-and-belt-set) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-06-29*