Garmin 010-13118-00 HRM-Pro Plus,... https://www.amazon.com/dp/B0B3PNFK9H?ref=ppx_pop_mob_ap_share
I absolutely love it, been worth every dollar.
I did get it on sale at $90, so if you wait for another deal, you can save some $$.
Whats the last you can do for HRM Pro Plus? its available on Amazon for $95 https://www.amazon.com/Garmin-HRM-Pro-Captures-Dynamics-Transmits/dp/B0B3PNFK9H