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Polar T31 Transmitter

by Polar
4.3 out of 5 stars 163 customer reviews

RRP: £31.50
Price: £23.95 & FREE Delivery in the UK. Details
You Save: £7.55 (24%)
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9 new from £21.90 2 used from £20.51
Coded
  • 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)

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£23.95 & FREE Delivery in the UK. Details In stock. Dispatched from and sold by Amazon. Gift-wrap available.

Frequently Bought Together

  • Polar T31 Transmitter
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Total price: £323.94
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Style Name: Coded

Product details

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  • ASIN: B013FUL4I8
  • Date first available at Amazon.co.uk: 5 Aug. 2015
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (163 customer reviews)
  • Amazon Bestsellers Rank: 2,802 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Product Description

Product Description

The Polar T31 transmitter is slim and light transmitter that is fully water resistant and designed for all weather conditions. Its purpose is to transmit your heart rate to your wrist unit ECG (electrocardiogram) accurately.

Customer Reviews

Top Customer Reviews

Style Name: Uncoded Verified Purchase
The transmitter itself it great, it send reliable heart rate stats to my horizon cross trainer, however the fact you cannot change the battery and have to discard the transmitter is a joke, in the modern day where recycling widespread to require you to discard a perfectly useable device and purchase another due to a battery needing to be changed is ridiculous.
2 Comments 21 of 21 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Coded 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.
Comment 15 of 15 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Uncoded Verified Purchase
I bought this for use with equipment at the gym - notably a Precor treadmill and a STAR TRAC spinner. I decided on the uncoded version as it was cheaper than the coded and had never seen another gym user using a HRM. Before i used it I read that STAR TRAC will only recognise coded straps but was relieved when it did connect and it worked really well - stayed connected. No interference luckily but that was due to spinners being in the far corner of the gym away from most equipment and no other users wearing HRMS.

However on the treadmill my HRM was detected on treadmills both sides of me and I also found the connectivity and measurements were erratic - this could be due to the fact that the HRM was trying to connect to other equipment near by. I would recommend paying a bit extra and buying a coded one.

Also you cant changed the battery on this. When its dead its dead - however you do get 2400hrs / 5 years of use
Comment 9 of 9 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Coded
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!
2 Comments 54 of 57 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Uncoded Verified Purchase
I have an old Polar wrist watch/pulse monitor. I was frightened that when the chest piece-transmitter broke that I would have to buy a complete new kit. I need not have worried as the signal transmission seems not to have altered with fashions. I was very pleased to be able to buy this replacement which works perfectly with my watch. Thank you Polar for looking after your customers.
Comment 28 of 30 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Style Name: Uncoded
Works really well no issue connecting it to any of the equipment at the gym. very easy to put on. Great.
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Style Name: Uncoded Verified Purchase
In one sense it is just what you want - a heart rate monitor that works first time when teamed with a tacx turbo trainer. The only issue I had is that it can never be relied upon to give you a maximum reading. Perhaps it is just my shape but it would jump from 145bpm to 195bpm and then up to 220bpm before dropping back down to a sensible reading. I tend to keep an eye on my heart rate so have a good idea as to the maximum. I would prefer it didn't do this but I can live with it.
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Style Name: Uncoded Verified Purchase
Fine to start with, but after only 5 months the battery seems to be dead and, of course, it can't be replaced.
4 Comments 12 of 13 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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