Polar Extra Chest Strap Medium - Adjustable 34 to 50 Inches - Transmitter Not Included

This is a duplicate that fits on my Polar heart rate chest strap. I looked at the Polar website and this identical strap cost $5 more than this vendor. Excellent opportunity to replace my stretched-out one. I had a Polar watch that this came with and when it quit working (way way way before fitness tracking watches came on the scene]. I thought I had thrown this away but being born in the year of the Rat (pack rat comes to mind) I recently found the strap that I have been hoarding for the last couple of decades. I had a fitness assessment at my gym and lo and behold they used one of these straps. Luckily I found my old strap in a box of unused fitness equipment. Now I can use it with the "TechnoGym" equipment at my gym!

It is an exact replacement of the OEM straps, and cheaper than buying the whole sensor assembly. The straps eventually stretch out of shape, but for now everything is working great. I would purchase again.

Fits well with our transmitter.

my husband returned a very expensive gadget for this ans is happy he did

I've tried 3 replacement batteries. All test "Good" on a battery tester. I cleaned the contacts. But the HR monitor is still not working.

Perfect replacement chest strap for Polar heart rate monitor. Adjustable and comfortable

I wash mine after each use and it will last at least a year before the elastic gets weak.

This is an exact replacement (Polar Brand) for the original, just not stretched out.