I had to buy a replacement transmitter for my Polar heart rate monitor because I must've not read the fine print that said dry off the transmitter when not using.Sweat moisture activates the transmitter that drains down the non-replaceable battery.I failed to dry the unit when I quit exercising, so the battery ran down quickly -- about 10x quicker than expected.Not too bright of me considering I have an advanced degree in engineering.So I'm telling you all now.BTW, the new one works fine.No problem.
Product Description
Polar Chest Strap and Transmitters sold as a set.
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