Help please.

I’ve an old wearlink strap and transmitter. I think the strap has stopped working properly – it did this once before and I replace the fabric bit and it worked fine.

I see that the w+ new fabric part is a complete circle, wheras my old one pops into the transmitter at the front to complete the circle.

It looks like it ought to be compatible as the new one has poppers in what looks to be a similar place, but I’m not sure. Anyone know ?

Thanks