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Polar T31 Coded Transmitter

by Polar
| 9 answered questions

RRP: £47.86
Price: £26.99 & FREE Delivery in the UK. Details
You Save: £20.87 (44%)
In stock.
Dispatched from and sold by Amazon. Gift-wrap available.
18 new from £26.64
  • Coded transmitter unit
  • Works with current models except CS600 and RS800 but only eliminates interference (cross-talk) when used with a coded wrist or head unit
  • Set includes sealed coded transmitter and elastic strap(M)

Frequently Bought Together

Polar T31 Coded Transmitter + Polar Chest Strap - Spare, S
Price For Both: £31.94

Buy the selected items together


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Product details

  • Product Dimensions: 0.1 x 0.1 x 0.1 cm ; 9 g
  • Boxed-product Weight: 231 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Batteries 1 Nonstandard Battery batteries required. (included)
  • Item model number: 920135
  • ASIN: B000ARDPPU
  • Date first available at Amazon.co.uk: 19 Aug 2008
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (47 customer reviews)
  • Amazon Bestsellers Rank: 9,854 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Product Description

At the heart of your training is the Polar T31 Coded Transmitter Set. Its purpose is simple; to transmit your heart rate to your wrist unit. Slim and light, the ECG (electrocardiogram) accurate transmitter is fully water resistant and designed for all weather conditions. Prevents cross-talk from other electrical devices for accurate measurement of your training. It is built to last with up to 2500 hours of training usage. No user replaceable battery. Fully water resistant.

Customer Questions & Answers

Customer Reviews

4.4 out of 5 stars
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Most Helpful Customer Reviews

52 of 54 people found the following review helpful By John Jamieson on 3 Aug 2009
This review was amended in January 2013 order to make clear the distinction between the Polar T31 transmitter and the separately available Polar wristband displays.

The T31 is the standard Polar chest band heart rate transmitter. It is also available in a package with Polar wrist band heart rate displays such as the Polar F4, F6, F7 etc.

If you work out in a gym equipped with modern treadmills, cross trainers, steppers, cycle exercisers etc you will find that the machines are all capable of picking up and displaying the heart-rate signals transmitted by the T31. So if you only work out in the gym using modern exercise machines (e.g. Technogym) just buy the T31 at less than half the price of the full transmitter and monitor package. If you later decide to use it for running, cycling or swimming, just add a Polar wrist band monitor.

The T31 is good value for money, in my opinion. Just ensure that the two conductive strips (look like carbon fibre) on the inner face are slightly damp before starting: once you get into the calorie burning zone your perspiration will keep them that way!
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14 of 14 people found the following review helpful By C. Norris on 16 Nov 2009
Verified Purchase
I got this as my T31 strap stopped working with my Polar HRM after about 2 years. I thought I would have to sync or somehow configure the watch to accept the new strap but it started working as soon as I put it on. Neat!

For anyone having problems just remember to wet the hatched areas that go against your skin. I give them a quick lick which does the trick.
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5 of 6 people found the following review helpful By Mr. J. J. Coote on 6 May 2010
Verified Purchase
Pretty boring item to review but worked absolutely fine with all the cardio machines (Life Fitness) at my gym.
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By Tim on 30 Jun 2014
Verified Purchase
My old Polar HRM was probably around ten years old and, while it still functioned electronically, the plastic was weak and treating apart to the point of breaking. The replacement works perfectly and should be good for several years to come. I use it with a Polar Vantage NV watch, which itself is over fifteen years old and only needs DIY battery replacement (50p each time) less than once per annum.
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Unit built to same standard as the original one delivered with heart rate monitor. Works fine and connects every time.
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By Richy on 9 Jun 2014
Verified Purchase
Mint works like a charm, never have to pre program anything again just pop the strap on and away I go on the exercise machines.
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Verified Purchase
Works just like the old one, its comfortable and easy to clean. I use it with a very old X Trainer watch
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This is a replacement for a Polar HR monitor and chest strap. It appears more comfortable than the one it replaced but as the batteries cannot be changed I suspect it is the only option.
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